diff --git a/FUTURE.md b/FUTURE.md
index 0b8cf2e..39dcdb2 100644
--- a/FUTURE.md
+++ b/FUTURE.md
@@ -5,8 +5,6 @@
 * [x] 全新 vex 通信协议
 * [x] 优化性能，全双工通信
 * [x] 支持客户端连接池
-* [ ] 支持拒绝策略，比如 ip 拒绝
-* [ ] 支持 tls 安全传输
 * [x] 单元测试覆盖率提高到 90%
 
 ### v0.4.x
diff --git a/HISTORY.md b/HISTORY.md
index b44a48d..b208e28 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,11 @@
 ## 🎡 历史版本的特性介绍
 
+### v0.5.2
+
+> 此版本发布于 2026-03-01
+
+* 增加 Pool 代码和单元测试
+
 ### v0.5.1-alpha
 
 > 此版本发布于 2026-02-27
diff --git a/README.en.md b/README.en.md
index b3e64a2..ec4dbfc 100644
--- a/README.en.md
+++ b/README.en.md
@@ -126,8 +126,8 @@ goos: linux
 goarch: amd64
 cpu: Intel(R) Xeon(R) CPU E5-26xx v4
 
-BenchmarkPacket-2          48885             25712 ns/op            4600 B/op          9 allocs/op
-BenchmarkPacketPool-2      58665             21461 ns/op            4601 B/op          9 allocs/op
+BenchmarkPacket-2                  43992             26818 ns/op            4664 B/op         15 allocs/op
+BenchmarkPacketPool-2              56511             20681 ns/op            4690 B/op         16 allocs/op
 ```
 
 > Benchmark: [_examples/packet_test.go](./_examples/packet_test.go).
diff --git a/README.md b/README.md
index 4f3c078..4a207b4 100644
--- a/README.md
+++ b/README.md
@@ -121,8 +121,8 @@ goos: linux
 goarch: amd64
 cpu: Intel(R) Xeon(R) CPU E5-26xx v4
 
-BenchmarkPacket-2          48885             25712 ns/op            4600 B/op          9 allocs/op
-BenchmarkPacketPool-2      58665             21461 ns/op            4601 B/op          9 allocs/op
+BenchmarkPacket-2                  43992             26818 ns/op            4664 B/op         15 allocs/op
+BenchmarkPacketPool-2              56511             20681 ns/op            4690 B/op         16 allocs/op
 ```
 
 > 测试文件：[_examples/packet_test.go](./_examples/packet_test.go)。
diff --git a/_icons/coverage.svg b/_icons/coverage.svg
index 1d8d43d..89927ff 100644
--- a/_icons/coverage.svg
+++ b/_icons/coverage.svg
@@ -10,7 +10,7 @@
     <g fill="#fff" text-anchor="middle" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="11">
         <text x="32.5" y="15" fill="#010101" fill-opacity=".3">coverage</text>
         <text x="32.5" y="14">coverage</text>
-        <text x="80" y="15" fill="#010101" fill-opacity=".3">92%</text>
-        <text x="80" y="14">92%</text>
+        <text x="80" y="15" fill="#010101" fill-opacity=".3">95%</text>
+        <text x="80" y="14">95%</text>
     </g>
 </svg>
\ No newline at end of file
diff --git a/pool.go b/pool.go
index 87638aa..1063c19 100644
--- a/pool.go
+++ b/pool.go
@@ -6,10 +6,18 @@ package vex
 
 import (
 	"context"
+	"errors"
 
 	"github.com/FishGoddess/rego"
 )
 
+var (
+	errPoolClosed = errors.New("vex: pool is closed")
+)
+
+// Status is the status information of pool.
+type Status rego.Status
+
 type poolClient struct {
 	pool *Pool
 
@@ -61,6 +69,10 @@ func NewPool(limit uint64, dial DialFunc, opts ...Option) *Pool {
 	}
 
 	pool.clients = rego.New(limit, acquire, release)
+	pool.clients.WithPoolClosedErrFunc(func(ctx context.Context) error {
+		return errPoolClosed
+	})
+
 	return pool
 }
 
@@ -69,6 +81,12 @@ func (p *Pool) Get(ctx context.Context) (Client, error) {
 	return p.clients.Acquire(ctx)
 }
 
+// Status returns the status of pool.
+func (p *Pool) Status() Status {
+	status := p.clients.Status()
+	return Status(status)
+}
+
 // Close closes the pool and releases all clients in it.
 func (p *Pool) Close() error {
 	ctx := context.Background()
diff --git a/pool_test.go b/pool_test.go
new file mode 100644
index 0000000..2d80080
--- /dev/null
+++ b/pool_test.go
@@ -0,0 +1,86 @@
+// Copyright 2025 FishGoddess. All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+package vex
+
+import (
+	"context"
+	"fmt"
+	"sync/atomic"
+	"testing"
+)
+
+// go test -v -cover -run=^TestNewPool$
+func TestPool(t *testing.T) {
+	ctx := context.Background()
+
+	address, done, err := runTestServer()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	defer done()
+
+	var clientPtr atomic.Pointer[Client]
+	dial := func(ctx context.Context) (Client, error) {
+		client, err := NewClient(address)
+		if err != nil {
+			return nil, err
+		}
+
+		clientPtr.Store(&client)
+		return client, nil
+	}
+
+	pool := NewPool(4, dial)
+	defer pool.Close()
+
+	for range 100 {
+		func() {
+			client, err := pool.Get(ctx)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			defer client.Close()
+
+			poolClient, ok := client.(poolClient)
+			if !ok {
+				t.Fatalf("got %T is wrong", client)
+			}
+
+			loadClient := clientPtr.Load()
+			if loadClient == nil {
+				t.Fatalf("load client is nil")
+			}
+
+			got := fmt.Sprintf("%p", poolClient.client)
+			want := fmt.Sprintf("%p", *loadClient)
+			if got != want {
+				t.Fatalf("got %s != want %s", got, want)
+			}
+
+			status := pool.Status()
+			wantStatus := Status{Limit: 4, Using: 1, Idle: 0, Waiting: 0}
+			if status != wantStatus {
+				t.Fatalf("got %+v != want %+v", status, wantStatus)
+			}
+		}()
+	}
+
+	status := pool.Status()
+	wantStatus := Status{Limit: 4, Using: 0, Idle: 1, Waiting: 0}
+	if status != wantStatus {
+		t.Fatalf("got %+v != want %+v", status, wantStatus)
+	}
+
+	if err = pool.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = pool.Get(ctx)
+	if err != errPoolClosed {
+		t.Fatalf("got %+v != want %+v", err, errPoolClosed)
+	}
+}