diff --git a/src/push/every_push.rs b/src/push/every_push.rs
index 773d4c2..6eac5b1 100644
--- a/src/push/every_push.rs
+++ b/src/push/every_push.rs
@@ -1,6 +1,24 @@
 use crate::webclient::WebClient;
 use std::collections::HashMap;
 
+#[derive(Debug, Clone, Copy, Eq, PartialEq)]
+/// Text type
+pub enum EveryPushTextType {
+    Text,
+    Image,
+    Markdown,
+}
+
+impl std::fmt::Display for EveryPushTextType {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            EveryPushTextType::Text => write!(f, "text"),
+            EveryPushTextType::Image => write!(f, "image"),
+            EveryPushTextType::Markdown => write!(f, "markdown"),
+        }
+    }
+}
+
 pub struct EveryPushClient {
     client: WebClient,
     server: String,
@@ -14,12 +32,19 @@ impl EveryPushClient {
         }
     }
 
+    /// push message to server
+    /// * `push_token` - push token
+    /// * `text` - text
+    /// * `title` - title
+    /// * `typ` - text type
+    ///
+    /// For more information, see [API document](https://github.com/PeanutMelonSeedBigAlmond/EveryPush.Server/blob/main/api.md#推送消息)
     pub async fn push_message(
         &self,
         push_token: String,
         text: String,
         title: Option<String>,
-        typ: Option<String>,
+        typ: Option<EveryPushTextType>,
     ) -> Result<(), String> {
         let mut params: HashMap<String, String> = HashMap::new();
         params.insert(String::from("pushToken"), push_token);
@@ -29,7 +54,7 @@ impl EveryPushClient {
             None => None,
         };
         match typ {
-            Some(t) => params.insert(String::from("type"), t),
+            Some(t) => params.insert(String::from("type"), format!("{}", t)),
             None => None,
         };
         let re = self
@@ -70,7 +95,7 @@ async fn test_every_push_push() {
                         token,
                         String::from("Push Test"),
                         Some(String::from("Push")),
-                        None,
+                        Some(EveryPushTextType::Text),
                     )
                     .await
                 {
diff --git a/src/push/mod.rs b/src/push/mod.rs
index f937820..6ea4abd 100644
--- a/src/push/mod.rs
+++ b/src/push/mod.rs
@@ -1 +1,2 @@
+/// [EveryPush](https://github.com/PeanutMelonSeedBigAlmond/EveryPush) client
 pub mod every_push;