diff --git a/vscode/src/jenkins/trigger.test.ts b/vscode/src/jenkins/trigger.test.ts
new file mode 100644
index 0000000..532b37e
--- /dev/null
+++ b/vscode/src/jenkins/trigger.test.ts
@@ -0,0 +1,35 @@
+import { describe, expect, it } from 'vitest'
+import { buildJenkinsArgs, triggerJenkinsBuild } from './trigger'
+
+describe('buildJenkinsArgs', () => {
+  it('每个参数一个 -p，不带 -s', () => {
+    expect(buildJenkinsArgs('luffy', { REF: 'release/2026-08-31', REMOTE_HOST: '正式服' }))
+      .toEqual(['jks', 'build', 'luffy', '-p', 'REF=release/2026-08-31', '-p', 'REMOTE_HOST=正式服'])
+  })
+})
+
+describe('triggerJenkinsBuild', () => {
+  it('opencli 缺失 → 明确报错', async () => {
+    const exec = async () => {
+      const e = new Error('spawn opencli ENOENT') as NodeJS.ErrnoException
+      e.code = 'ENOENT'
+      throw e
+    }
+    await expect(triggerJenkinsBuild({ job: 'j', params: {}, exec })).rejects.toThrow(/未找到 opencli/)
+  })
+
+  it('退出码非零 → 带 stderr', async () => {
+    const exec = async () => ({ code: 1, stderr: 'boom: not a valid parameter' })
+    await expect(triggerJenkinsBuild({ job: 'j', params: {}, exec })).rejects.toThrow(/not a valid parameter/)
+  })
+
+  it('成功', async () => {
+    const calls: string[][] = []
+    const exec = async (_b: string, a: string[]) => {
+      calls.push(a)
+      return { code: 0, stderr: '' }
+    }
+    await triggerJenkinsBuild({ job: 'j', params: { REF: 'x' }, exec })
+    expect(calls).toEqual([['jks', 'build', 'j', '-p', 'REF=x']])
+  })
+})
diff --git a/vscode/src/jenkins/trigger.ts b/vscode/src/jenkins/trigger.ts
new file mode 100644
index 0000000..4622f08
--- /dev/null
+++ b/vscode/src/jenkins/trigger.ts
@@ -0,0 +1,52 @@
+/**
+ * 通过 opencli 触发 Jenkins 构建：`opencli jks build <job> -p K=V …`。
+ *
+ * 故意不加 `-s`（同步等待）：opencli 文档说明同步模式下命令行一断，Jenkins 会中止构建，
+ * 而扩展进程随时可能被关掉，只做「触发」最稳妥。
+ */
+
+import { execFile } from 'node:child_process'
+
+export type ExecFn = (bin: string, args: string[]) => Promise<{ code: number | null, stderr: string }>
+
+const OPENCLI_TIMEOUT_MS = 60_000
+
+export function buildJenkinsArgs(job: string, params: Record<string, string>): string[] {
+  const args = ['jks', 'build', job]
+  for (const [key, value] of Object.entries(params))
+    args.push('-p', `${key}=${value}`)
+  return args
+}
+
+/** 二进制不存在（ENOENT）原样抛出，其它失败都折叠成退出码 + stderr，由调用方统一措辞 */
+function execDefault(bin: string, args: string[]): Promise<{ code: number | null, stderr: string }> {
+  return new Promise((resolve, reject) => {
+    execFile(bin, args, { timeout: OPENCLI_TIMEOUT_MS, encoding: 'utf8' }, (err, _stdout, stderr) => {
+      if (!err) {
+        resolve({ code: 0, stderr: stderr ?? '' })
+        return
+      }
+      const e = err as NodeJS.ErrnoException & { code?: number | string | null }
+      if (e.code === 'ENOENT') {
+        reject(e)
+        return
+      }
+      resolve({ code: typeof e.code === 'number' ? e.code : 1, stderr: stderr ?? e.message })
+    })
+  })
+}
+
+export async function triggerJenkinsBuild(o: { job: string, params: Record<string, string>, exec?: ExecFn }): Promise<void> {
+  const exec = o.exec ?? execDefault
+  let result: { code: number | null, stderr: string }
+  try {
+    result = await exec('opencli', buildJenkinsArgs(o.job, o.params))
+  }
+  catch (err) {
+    if ((err as NodeJS.ErrnoException).code === 'ENOENT')
+      throw new Error('未找到 opencli，请确认已安装并在 PATH 中')
+    throw err
+  }
+  if (result.code !== 0)
+    throw new Error(`Jenkins 触发失败（退出码 ${result.code}）：${result.stderr.trim().slice(-400)}`)
+}