diff --git a/packages/cli/package.json b/packages/cli/package.json
index 50d58c7d00..30ecff8931 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -41,6 +41,7 @@
   "dependencies": {
     "cac": "^6.7.12",
     "chokidar": "^3.5.3",
+    "dotenv": "^16.0.0",
     "js-yaml": "^4.1.0",
     "kleur": "^4.1.4",
     "koishi": "^4.2.0",
diff --git a/packages/cli/src/loader.ts b/packages/cli/src/loader.ts
index a813312a62..221b822626 100644
--- a/packages/cli/src/loader.ts
+++ b/packages/cli/src/loader.ts
@@ -2,6 +2,7 @@ import { resolve, extname, dirname, isAbsolute } from 'path'
 import { readdirSync, readFileSync, writeFileSync } from 'fs'
 import { App, Dict, Logger, interpolate, Modules, unwrapExports, valueMap } from 'koishi'
 import * as yaml from 'js-yaml'
+import * as dotenv from 'dotenv'
 
 declare module 'koishi' {
   namespace Context {
@@ -81,6 +82,11 @@ export class Loader {
       config = module.default || module
     }
 
+    // load .env file into process.env
+    dotenv.config({
+      path: resolve(this.dirname, '.env'),
+    })
+
     let resolved = new App.Config(config)
     if (this.isWritable) {
       // schemastery may change original config