diff --git a/mimetype/yaml/yaml.go b/mimetype/yaml/yaml.go
new file mode 100644
index 00000000..730f15c7
--- /dev/null
+++ b/mimetype/yaml/yaml.go
@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: 2024 caixw
+//
+// SPDX-License-Identifier: MIT
+
+// Package yaml 支持 YAML 编码的序列化操作
+package yaml
+
+import (
+	"io"
+
+	"gopkg.in/yaml.v3"
+
+	"github.com/issue9/web"
+)
+
+const (
+	Mimetype        = "application/yaml"
+	ProblemMimetype = "application/problem+yaml"
+)
+
+func Marshal(_ *web.Context, v any) ([]byte, error) { return yaml.Marshal(v) }
+
+func Unmarshal(r io.Reader, v any) error { return yaml.NewDecoder(r).Decode(v) }
diff --git a/mimetype/yaml/yaml_test.go b/mimetype/yaml/yaml_test.go
new file mode 100644
index 00000000..514519c2
--- /dev/null
+++ b/mimetype/yaml/yaml_test.go
@@ -0,0 +1,12 @@
+// SPDX-FileCopyrightText: 2024 caixw
+//
+// SPDX-License-Identifier: MIT
+
+package yaml
+
+import "github.com/issue9/web"
+
+var (
+	_ web.MarshalFunc   = Marshal
+	_ web.UnmarshalFunc = Unmarshal
+)