diff --git a/apps/desktop/src/components/plugins/PluginContributionsPanel.vue b/apps/desktop/src/components/plugins/PluginContributionsPanel.vue
index 08b9a7a238..13c05c8683 100644
--- a/apps/desktop/src/components/plugins/PluginContributionsPanel.vue
+++ b/apps/desktop/src/components/plugins/PluginContributionsPanel.vue
@@ -63,6 +63,7 @@ import {
   formatMarketplaceReleasedDate,
   marketplaceHomepageUrl,
   pluginSourceChange,
+  resolveMarketplaceReleaseUrl,
   sortMarketplacePluginListings,
   type InstalledPluginUpdateEntry,
   type MarketplacePluginListing,
@@ -333,10 +334,7 @@ function marketplaceVersionPublishedLabel(version: PluginMarketplaceVersion): st
 // The expanded entry links to the release page for that exact version in the
 // plugin's source repository, mirroring the 更新管理 panel's GitHub Release button.
 function marketplaceVersionReleaseUrl(version: PluginMarketplaceVersion): string {
-  const source = selectedMarketplaceListing.value?.plugin.source?.trim();
-  if (!source) return "";
-  const tag = version.version.startsWith("v") ? version.version : `v${version.version}`;
-  return `${source.replace(/\/+$/, "")}/releases/tag/${encodeURIComponent(tag)}`;
+  return resolveMarketplaceReleaseUrl(selectedMarketplaceListing.value?.plugin.source, version);
 }
 const batchUpdatableListings = computed(() => filteredMarketplaceListings.value.filter((listing) => listing.status === "update"));
 const batchSelectedListings = computed(() => filteredMarketplaceListings.value.filter((listing) => isBatchSelectableListing(listing.status) && selectedListingKeys.value.has(listing.key)));
diff --git a/apps/desktop/src/components/plugins/__tests__/PluginContributionsPanelBatch.spec.ts b/apps/desktop/src/components/plugins/__tests__/PluginContributionsPanelBatch.spec.ts
index 2201a852a7..292deb0155 100644
--- a/apps/desktop/src/components/plugins/__tests__/PluginContributionsPanelBatch.spec.ts
+++ b/apps/desktop/src/components/plugins/__tests__/PluginContributionsPanelBatch.spec.ts
@@ -1700,6 +1700,23 @@ describe("marketplace detail update history", () => {
     expect(openSpy).toHaveBeenCalledWith("https://github.com/jinpy/dbx-ssh-plugin/releases/tag/v3.0.0", "_blank", "noopener,noreferrer");
     openSpy.mockRestore();
   });
+
+  it("links expanded version to GitHub release page when source has a branch tree URL", async () => {
+    const openSpy = vi.spyOn(window, "open").mockImplementation(() => null);
+    const cat = multiVersionCatalog();
+    cat.catalog!.plugins[0].source = "https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/tree/v0.3.3";
+    state.catalogResults = [cat];
+    await flushUi();
+    state.openMarketplaceDetails(state.marketplaceListings[0]);
+    await flushUi();
+    const dialog = document.querySelector('[role="dialog"]')!;
+    const releaseButton = [...dialog.querySelectorAll("button")].find((element) => element.textContent?.includes("pluginPlatform.pluginDetailsOpenRelease"))!;
+    expect(releaseButton).toBeDefined();
+    releaseButton.click();
+    await flushUi();
+    expect(openSpy).toHaveBeenCalledWith("https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/releases/tag/v3.0.0", "_blank", "noopener,noreferrer");
+    openSpy.mockRestore();
+  });
 });
 
 describe("marketplace author filtering", () => {
diff --git a/apps/desktop/src/lib/plugins/pluginMarketplace.spec.ts b/apps/desktop/src/lib/plugins/pluginMarketplace.spec.ts
index ce2c7eaa94..1c5f80c4a4 100644
--- a/apps/desktop/src/lib/plugins/pluginMarketplace.spec.ts
+++ b/apps/desktop/src/lib/plugins/pluginMarketplace.spec.ts
@@ -3,10 +3,12 @@ import {
   buildInstalledUpdateIndex,
   buildMarketplacePluginListings,
   compareVersions,
+  extractRepositoryBaseUrl,
   filterMarketplacePluginListings,
   formatMarketplaceReleasedDate,
   marketplaceHomepageUrl,
   pluginSourceChange,
+  resolveMarketplaceReleaseUrl,
   selectMarketplaceArtifact,
   sortMarketplacePluginListings,
   type MarketplacePluginListing,
@@ -136,6 +138,72 @@ describe("plugin marketplace listings", () => {
     expect(marketplaceHomepageUrl("https://github.com/dbxio/example/", "https://github.com/dbxio/example#readme")).toBeUndefined();
     expect(marketplaceHomepageUrl("https://github.com/dbxio/example", "https://dbxio.com/plugins/example")).toBe("https://dbxio.com/plugins/example");
   });
+
+  describe("resolveMarketplaceReleaseUrl", () => {
+    it("resolves GitHub branch and tag tree URLs to root repository release tag", () => {
+      // Regression for #12516: source with /tree/<ref> should not result in /tree/<ref>/releases/tag/...
+      expect(resolveMarketplaceReleaseUrl("https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/tree/v0.3.3", "0.3.3")).toBe("https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/releases/tag/v0.3.3");
+
+      expect(resolveMarketplaceReleaseUrl("https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/tree/v0.3.3/", "0.3.3")).toBe("https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/releases/tag/v0.3.3");
+
+      expect(resolveMarketplaceReleaseUrl("https://github.com/t8y2/dbx/tree/main/plugins/examples/hello-workbench", "0.1.0")).toBe("https://github.com/t8y2/dbx/releases/tag/v0.1.0");
+    });
+
+    it("resolves standard repository URLs with and without trailing slash or .git", () => {
+      expect(resolveMarketplaceReleaseUrl("https://github.com/jinpy/dbx-ssh-plugin", "3.0.0")).toBe("https://github.com/jinpy/dbx-ssh-plugin/releases/tag/v3.0.0");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/jinpy/dbx-ssh-plugin/", "3.0.0")).toBe("https://github.com/jinpy/dbx-ssh-plugin/releases/tag/v3.0.0");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/jinpy/dbx-ssh-plugin.git", "3.0.0")).toBe("https://github.com/jinpy/dbx-ssh-plugin/releases/tag/v3.0.0");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/jinpy/dbx-ssh-plugin", "v3.0.0")).toBe("https://github.com/jinpy/dbx-ssh-plugin/releases/tag/v3.0.0");
+    });
+
+    it("resolves blob, releases, and ssh URLs", () => {
+      expect(resolveMarketplaceReleaseUrl("https://github.com/owner/repo/blob/main/README.md", "1.0.0")).toBe("https://github.com/owner/repo/releases/tag/v1.0.0");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/owner/repo/releases", "1.0.0")).toBe("https://github.com/owner/repo/releases/tag/v1.0.0");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/owner/repo/releases/tag/v0.1.0", "1.0.0")).toBe("https://github.com/owner/repo/releases/tag/v1.0.0");
+      expect(resolveMarketplaceReleaseUrl("git@github.com:Ezreal-byte/dbx-plugin-xxl-job-console.git", "0.3.3")).toBe("https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/releases/tag/v0.3.3");
+    });
+
+    it("supports Gitee, GitLab, and CNB repository formats", () => {
+      expect(resolveMarketplaceReleaseUrl("https://gitee.com/someone/my-plugin/tree/master", "1.0.0")).toBe("https://gitee.com/someone/my-plugin/releases/tag/v1.0.0");
+      expect(resolveMarketplaceReleaseUrl("https://gitlab.com/group/subgroup/my-plugin/-/tree/main", "1.0.0")).toBe("https://gitlab.com/group/subgroup/my-plugin/-/releases/v1.0.0");
+      expect(resolveMarketplaceReleaseUrl("https://cnb.cool/dbxio.com/my-plugin/-/tree/main", "1.0.0")).toBe("https://cnb.cool/dbxio.com/my-plugin/-/releases/tag/v1.0.0");
+    });
+
+    it("accepts PluginMarketplaceVersion objects and handles empty inputs gracefully", () => {
+      expect(
+        resolveMarketplaceReleaseUrl("https://github.com/owner/repo", {
+          version: "2.1.0",
+          artifacts: [],
+        }),
+      ).toBe("https://github.com/owner/repo/releases/tag/v2.1.0");
+
+      expect(resolveMarketplaceReleaseUrl("", "1.0.0")).toBe("");
+      expect(resolveMarketplaceReleaseUrl("   ", "1.0.0")).toBe("");
+      expect(resolveMarketplaceReleaseUrl(undefined, "1.0.0")).toBe("");
+      expect(resolveMarketplaceReleaseUrl(null, "1.0.0")).toBe("");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/owner/repo", "")).toBe("");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/owner/repo", "   ")).toBe("");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/owner/repo", undefined)).toBe("");
+      expect(resolveMarketplaceReleaseUrl("https://github.com/owner/repo", { version: "", artifacts: [] })).toBe("");
+    });
+
+    it("extracts base repository URL from various git URL formats", () => {
+      expect(extractRepositoryBaseUrl("https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console/tree/v0.3.3")).toEqual({
+        baseUrl: "https://github.com/Ezreal-byte/dbx-plugin-xxl-job-console",
+        host: "github.com",
+      });
+      expect(extractRepositoryBaseUrl("https://github.com/owner/repo.git")).toEqual({
+        baseUrl: "https://github.com/owner/repo",
+        host: "github.com",
+      });
+      expect(extractRepositoryBaseUrl("git@github.com:owner/repo.git")).toEqual({
+        baseUrl: "https://github.com/owner/repo",
+        host: "github.com",
+      });
+      expect(extractRepositoryBaseUrl("")).toBeNull();
+      expect(extractRepositoryBaseUrl("   ")).toBeNull();
+    });
+  });
 });
 
 describe("buildInstalledUpdateIndex", () => {
diff --git a/apps/desktop/src/lib/plugins/pluginMarketplace.ts b/apps/desktop/src/lib/plugins/pluginMarketplace.ts
index bea401d768..90917a575f 100644
--- a/apps/desktop/src/lib/plugins/pluginMarketplace.ts
+++ b/apps/desktop/src/lib/plugins/pluginMarketplace.ts
@@ -1,4 +1,4 @@
-import type { InstalledPlugin, PluginMarketplaceArtifact, PluginMarketplacePlugin, PluginRepository, PluginRepositoryCatalogResult } from "@/types/database";
+import type { InstalledPlugin, PluginMarketplaceArtifact, PluginMarketplacePlugin, PluginMarketplaceVersion, PluginRepository, PluginRepositoryCatalogResult } from "@/types/database";
 import { uuid } from "@/lib/common/utils";
 
 export type MarketplacePluginStatus = "install" | "installed" | "update" | "unsupported";
@@ -36,6 +36,99 @@ export function marketplaceHomepageUrl(source?: string, homepage?: string): stri
   return homepage?.trim() || undefined;
 }
 
+/**
+ * Resolves the external release URL for a specific plugin version.
+ *
+ * Plugin catalogs often provide repository URLs pointing to a specific branch,
+ * tag, or subfolder (e.g. `https://github.com/owner/repo/tree/v0.3.3` or
+ * `https://github.com/owner/repo/tree/main/packages/plugin`), or git clone URLs
+ * (`.git`). This extracts the base repository root and appends the appropriate
+ * release path for the given version tag.
+ */
+export function resolveMarketplaceReleaseUrl(source?: string | null, version?: string | PluginMarketplaceVersion | null): string {
+  const trimmedSource = source?.trim();
+  const rawVersion = typeof version === "string" ? version.trim() : (version?.version?.trim() ?? "");
+  if (!trimmedSource || !rawVersion) return "";
+
+  const tag = rawVersion.startsWith("v") || rawVersion.startsWith("V") ? rawVersion : `v${rawVersion}`;
+  const repo = extractRepositoryBaseUrl(trimmedSource);
+  if (!repo) return "";
+
+  if (repo.host === "cnb.cool" || repo.host.endsWith(".cnb.cool")) {
+    return `${repo.baseUrl}/-/releases/tag/${encodeURIComponent(tag)}`;
+  }
+  if (repo.host === "gitlab.com" || repo.host.endsWith(".gitlab.com")) {
+    return `${repo.baseUrl}/-/releases/${encodeURIComponent(tag)}`;
+  }
+  return `${repo.baseUrl}/releases/tag/${encodeURIComponent(tag)}`;
+}
+
+export function extractRepositoryBaseUrl(source: string): { baseUrl: string; host: string } | null {
+  const trimmed = source.trim();
+  if (!trimmed) return null;
+
+  // Handle SSH URLs: git@github.com:owner/repo.git or ssh://git@github.com/owner/repo.git
+  const sshMatch = /^(?:ssh:\/\/)?git@([^/:]+)[:/](.+)$/i.exec(trimmed);
+  let normalized = trimmed;
+  if (sshMatch) {
+    const host = sshMatch[1];
+    const path = sshMatch[2].replace(/\.git$/i, "").replace(/^\/+/, "");
+    normalized = `https://${host}/${path}`;
+  } else if (!/^https?:\/\//i.test(normalized)) {
+    normalized = `https://${normalized}`;
+  }
+
+  let parsed: URL;
+  try {
+    parsed = new URL(normalized);
+  } catch {
+    const cleaned = trimmed
+      .replace(/\/(?:-?\/)?(?:tree|blob|releases|src)(?:\/.*)?$/i, "")
+      .replace(/\.git$/i, "")
+      .replace(/\/+$/, "");
+    return cleaned ? { baseUrl: cleaned, host: "" } : null;
+  }
+
+  const host = parsed.hostname.toLowerCase();
+  const origin = parsed.origin;
+  const segments = parsed.pathname.split("/").filter(Boolean);
+  if (segments.length === 0) return null;
+
+  // On GitHub and Gitee, repositories are strictly <owner>/<repo>.
+  // Any trailing segment (e.g. /tree/<ref>, /blob/<ref>, /releases) is not part of the repository.
+  if (host === "github.com" || host.endsWith(".github.com") || host === "gitee.com" || host.endsWith(".gitee.com")) {
+    if (segments.length >= 2) {
+      const owner = segments[0];
+      const repoName = segments[1].replace(/\.git$/i, "");
+      return { baseUrl: `${origin}/${owner}/${repoName}`, host };
+    }
+    return { baseUrl: `${origin}/${segments[0].replace(/\.git$/i, "")}`, host };
+  }
+
+  // On GitLab, CNB, etc., UI routes (tree, blob, releases, etc.) follow a "/-/" segment:
+  // e.g. https://gitlab.com/group/subgroup/project/-/tree/main
+  // e.g. https://cnb.cool/org/project/-/releases/tag/v1.0.0
+  const dashIndex = segments.indexOf("-");
+  if (dashIndex > 0) {
+    const repoSegments = segments.slice(0, dashIndex);
+    repoSegments[repoSegments.length - 1] = repoSegments[repoSegments.length - 1].replace(/\.git$/i, "");
+    return { baseUrl: `${origin}/${repoSegments.join("/")}`, host };
+  }
+
+  // Generic git hosts (Gitea, Bitbucket, self-hosted, etc.):
+  // Strip trailing branches/trees/blobs/releases/src if present
+  const cutIndex = segments.findIndex((seg) => ["tree", "blob", "releases", "src"].includes(seg.toLowerCase()));
+  if (cutIndex > 0) {
+    const repoSegments = segments.slice(0, cutIndex);
+    repoSegments[repoSegments.length - 1] = repoSegments[repoSegments.length - 1].replace(/\.git$/i, "");
+    return { baseUrl: `${origin}/${repoSegments.join("/")}`, host };
+  }
+
+  // Default: strip .git from the last segment
+  segments[segments.length - 1] = segments[segments.length - 1].replace(/\.git$/i, "");
+  return { baseUrl: `${origin}/${segments.join("/")}`, host };
+}
+
 export function buildMarketplacePluginListings(results: readonly PluginRepositoryCatalogResult[], installedPlugins: readonly InstalledPlugin[], locale: string): MarketplacePluginListing[] {
   const installedById = new Map(installedPlugins.map((plugin) => [plugin.manifest.id, plugin]));
   return results