diff --git a/docs/config.md b/docs/config.md
index d3a2df2..93a299b 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -167,6 +167,16 @@ database: # 数据库相关设置
 
 > 注5：关于MIME扫描， 详见[MIME](file.md#MIME)
 
+### 环境变量
+
+go-cqhttp 配置文件可以使用占位符来读取**环境变量**的值。
+
+```yaml
+account: # 账号相关
+  uin: ${CQ_UIN} # 读取环境变量 CQ_UIN
+  password: ${CQ_PASSWORD} # 读取环境变量 CQ_UIN
+```
+
 ## 在线状态
 
 | 状态 | 值 |
diff --git a/internal/param/param.go b/internal/param/param.go
index 0b70967..c38bf1c 100644
--- a/internal/param/param.go
+++ b/internal/param/param.go
@@ -3,7 +3,6 @@ package param
 
 import (
 	"math"
-	"reflect"
 	"regexp"
 	"strings"
 	"sync"
@@ -94,37 +93,3 @@ func Base64DecodeString(s string) ([]byte, error) {
 	n, err := e.Decode(dst, utils.S2B(s))
 	return dst[:n], err
 }
-
-// SetAtDefault 在变量 variable 为默认值 defaultValue 的时候修改为 value
-func SetAtDefault(variable, value, defaultValue interface{}) {
-	v := reflect.ValueOf(variable)
-	v2 := reflect.ValueOf(value)
-	if v.Kind() != reflect.Ptr || v.IsNil() {
-		return
-	}
-	v = v.Elem()
-	if v.Interface() != defaultValue {
-		return
-	}
-	if v.Kind() != v2.Kind() {
-		return
-	}
-	v.Set(v2)
-}
-
-// SetExcludeDefault 在目标值 value 不为默认值 defaultValue 时修改 variable 为 value
-func SetExcludeDefault(variable, value, defaultValue interface{}) {
-	v := reflect.ValueOf(variable)
-	v2 := reflect.ValueOf(value)
-	if v.Kind() != reflect.Ptr || v.IsNil() {
-		return
-	}
-	v = v.Elem()
-	if reflect.Indirect(v2).Interface() != defaultValue {
-		return
-	}
-	if v.Kind() != v2.Kind() {
-		return
-	}
-	v.Set(v2)
-}
diff --git a/modules/config/config.go b/modules/config/config.go
index 89ee1c9..e9b049d 100644
--- a/modules/config/config.go
+++ b/modules/config/config.go
@@ -7,14 +7,11 @@ import (
 	"fmt"
 	"os"
 	"regexp"
-	"strconv"
 	"strings"
 	"sync"
 
 	log "github.com/sirupsen/logrus"
 	"gopkg.in/yaml.v3"
-
-	"github.com/Mrs4s/go-cqhttp/internal/param"
 )
 
 // defaultConfig 默认配置文件
@@ -74,9 +71,8 @@ type Config struct {
 
 // Server 的简介和初始配置
 type Server struct {
-	Brief    string
-	Default  string
-	ParseEnv func() (string, *yaml.Node)
+	Brief   string
+	Default string
 }
 
 // LevelDBConfig leveldb 相关配置
@@ -93,52 +89,17 @@ type MongoDBConfig struct {
 
 // Parse 从默认配置文件路径中获取
 func Parse(path string) *Config {
-	fromEnv := os.Getenv("GCQ_UIN") != ""
-
 	file, err := os.ReadFile(path)
 	config := &Config{}
 	if err == nil {
 		err = yaml.NewDecoder(strings.NewReader(expand(string(file), os.Getenv))).Decode(config)
-		if err != nil && !fromEnv {
+		if err != nil {
 			log.Fatal("配置文件不合法!", err)
 		}
-	} else if !fromEnv {
+	} else {
 		generateConfig()
 		os.Exit(0)
 	}
-	if fromEnv {
-		// type convert tools
-		toInt64 := func(str string) int64 {
-			i, _ := strconv.ParseInt(str, 10, 64)
-			return i
-		}
-
-		// load config from environment variable
-		param.SetAtDefault(&config.Account.Uin, toInt64(os.Getenv("GCQ_UIN")), int64(0))
-		param.SetAtDefault(&config.Account.Password, os.Getenv("GCQ_PWD"), "")
-		param.SetAtDefault(&config.Account.Status, int32(toInt64(os.Getenv("GCQ_STATUS"))), int32(0))
-		param.SetAtDefault(&config.Account.ReLogin.Disabled, !param.EnsureBool(os.Getenv("GCQ_RELOGIN_DISABLED"), true), false)
-		param.SetAtDefault(&config.Account.ReLogin.Delay, uint(toInt64(os.Getenv("GCQ_RELOGIN_DELAY"))), uint(0))
-		param.SetAtDefault(&config.Account.ReLogin.MaxTimes, uint(toInt64(os.Getenv("GCQ_RELOGIN_MAX_TIMES"))), uint(0))
-		dbConf := &LevelDBConfig{Enable: param.EnsureBool(os.Getenv("GCQ_LEVELDB"), true)}
-		if config.Database == nil {
-			config.Database = make(map[string]yaml.Node)
-		}
-		config.Database["leveldb"] = func() yaml.Node {
-			n := &yaml.Node{}
-			_ = n.Encode(dbConf)
-			return *n
-		}()
-
-		for _, s := range serverconfs {
-			if s.ParseEnv != nil {
-				name, node := s.ParseEnv()
-				if node != nil {
-					config.Servers = append(config.Servers, map[string]yaml.Node{name: *node})
-				}
-			}
-		}
-	}
 	return config
 }
 
diff --git a/modules/config/config_test.go b/modules/config/config_test.go
new file mode 100644
index 0000000..295a450
--- /dev/null
+++ b/modules/config/config_test.go
@@ -0,0 +1,30 @@
+package config
+
+import (
+	"strings"
+	"testing"
+)
+
+func Test_expand(t *testing.T) {
+	tests := []struct {
+		src      string
+		mapping  func(string) string
+		expected string
+	}{
+		{
+			src:      "foo: ${bar}",
+			mapping:  strings.ToUpper,
+			expected: "foo: BAR",
+		},
+		{
+			src:      "$123",
+			mapping:  strings.ToUpper,
+			expected: "$123",
+		},
+	}
+	for i, tt := range tests {
+		if got := expand(tt.src, tt.mapping); got != tt.expected {
+			t.Errorf("testcase %d failed, expected %v but got %v", i, tt.expected, got)
+		}
+	}
+}
diff --git a/server/http.go b/server/http.go
index 1df3cb5..dcde4f9 100644
--- a/server/http.go
+++ b/server/http.go
@@ -24,7 +24,6 @@ import (
 
 	"github.com/Mrs4s/go-cqhttp/coolq"
 	"github.com/Mrs4s/go-cqhttp/global"
-	"github.com/Mrs4s/go-cqhttp/internal/param"
 	"github.com/Mrs4s/go-cqhttp/modules/api"
 	"github.com/Mrs4s/go-cqhttp/modules/config"
 	"github.com/Mrs4s/go-cqhttp/modules/filter"
@@ -97,50 +96,8 @@ const httpDefault = `
       #  retries-interval: 1000      # 重试时间，单位毫秒，0 时立即
 `
 
-func nilParseUint(s string, base int, bitSize int) *uint64 {
-	pu, err := strconv.ParseUint(s, base, bitSize)
-	if err != nil {
-		return nil
-	}
-	return &pu
-}
-
-func readEnvConfig() (string, *yaml.Node) {
-	if s, ok := os.LookupEnv("GCQ_HTTP_PORT"); !ok || s == "" {
-		return "", nil
-	}
-
-	// type convert tools
-	toInt64 := func(str string) int64 {
-		i, _ := strconv.ParseInt(str, 10, 64)
-		return i
-	}
-	accessTokenEnv := os.Getenv("GCQ_ACCESS_TOKEN")
-	node := &yaml.Node{}
-	httpConf := &HTTPServer{
-		Host: "0.0.0.0",
-		Port: 5700,
-		MiddleWares: MiddleWares{
-			AccessToken: accessTokenEnv,
-		},
-	}
-	param.SetExcludeDefault(&httpConf.Disabled, param.EnsureBool(os.Getenv("GCQ_HTTP_DISABLE"), false), false)
-	param.SetExcludeDefault(&httpConf.Host, os.Getenv("GCQ_HTTP_HOST"), "")
-	param.SetExcludeDefault(&httpConf.Port, int(toInt64(os.Getenv("GCQ_HTTP_PORT"))), 0)
-	if os.Getenv("GCQ_HTTP_POST_URL") != "" {
-		httpConf.Post = append(httpConf.Post, httpServerPost{
-			os.Getenv("GCQ_HTTP_POST_URL"),
-			os.Getenv("GCQ_HTTP_POST_SECRET"),
-			nilParseUint(os.Getenv("GCQ_HTTP_POST_MAXRETRIES"), 10, 64),
-			nilParseUint(os.Getenv("GCQ_HTTP_POST_RETRIESINTERVAL"), 10, 64),
-		})
-	}
-	_ = node.Encode(httpConf)
-	return "http", node
-}
-
 func init() {
-	config.AddServer(&config.Server{Brief: "HTTP通信", Default: httpDefault, ParseEnv: readEnvConfig})
+	config.AddServer(&config.Server{Brief: "HTTP通信", Default: httpDefault})
 }
 
 var joinQuery = regexp.MustCompile(`\[(.+?),(.+?)]\.0`)
diff --git a/server/websocket.go b/server/websocket.go
index 964b926..20d3a73 100644
--- a/server/websocket.go
+++ b/server/websocket.go
@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
-	"os"
 	"runtime/debug"
 	"strconv"
 	"strings"
@@ -20,7 +19,6 @@ import (
 
 	"github.com/Mrs4s/go-cqhttp/coolq"
 	"github.com/Mrs4s/go-cqhttp/global"
-	"github.com/Mrs4s/go-cqhttp/internal/param"
 	"github.com/Mrs4s/go-cqhttp/modules/api"
 	"github.com/Mrs4s/go-cqhttp/modules/config"
 	"github.com/Mrs4s/go-cqhttp/modules/filter"
@@ -123,52 +121,10 @@ func init() {
 	config.AddServer(&config.Server{
 		Brief:   "正向 Websocket 通信",
 		Default: wsDefault,
-		ParseEnv: func() (string, *yaml.Node) {
-			if os.Getenv("GCQ_WS_PORT") != "" {
-				// type convert tools
-				toInt64 := func(str string) int64 {
-					i, _ := strconv.ParseInt(str, 10, 64)
-					return i
-				}
-				accessTokenEnv := os.Getenv("GCQ_ACCESS_TOKEN")
-				node := &yaml.Node{}
-				wsServerConf := &WebsocketServer{
-					Host: "0.0.0.0",
-					Port: 6700,
-					MiddleWares: MiddleWares{
-						AccessToken: accessTokenEnv,
-					},
-				}
-				param.SetExcludeDefault(&wsServerConf.Disabled, param.EnsureBool(os.Getenv("GCQ_WS_DISABLE"), false), false)
-				param.SetExcludeDefault(&wsServerConf.Host, os.Getenv("GCQ_WS_HOST"), "")
-				param.SetExcludeDefault(&wsServerConf.Port, int(toInt64(os.Getenv("GCQ_WS_PORT"))), 0)
-				_ = node.Encode(wsServerConf)
-				return "ws", node
-			}
-			return "", nil
-		},
 	})
 	config.AddServer(&config.Server{
 		Brief:   "反向 Websocket 通信",
 		Default: wsReverseDefault,
-		ParseEnv: func() (string, *yaml.Node) {
-			if os.Getenv("GCQ_RWS_API") != "" || os.Getenv("GCQ_RWS_EVENT") != "" || os.Getenv("GCQ_RWS_UNIVERSAL") != "" {
-				accessTokenEnv := os.Getenv("GCQ_ACCESS_TOKEN")
-				node := &yaml.Node{}
-				rwsConf := &WebsocketReverse{
-					MiddleWares: MiddleWares{
-						AccessToken: accessTokenEnv,
-					},
-				}
-				param.SetExcludeDefault(&rwsConf.Disabled, param.EnsureBool(os.Getenv("GCQ_RWS_DISABLE"), false), false)
-				param.SetExcludeDefault(&rwsConf.API, os.Getenv("GCQ_RWS_API"), "")
-				param.SetExcludeDefault(&rwsConf.Event, os.Getenv("GCQ_RWS_EVENT"), "")
-				param.SetExcludeDefault(&rwsConf.Universal, os.Getenv("GCQ_RWS_UNIVERSAL"), "")
-				_ = node.Encode(rwsConf)
-				return "ws-reverse", node
-			}
-			return "", nil
-		},
 	})
 }