diff --git a/src/commands/commit.rs b/src/commands/commit.rs
new file mode 100644
index 0000000..106a71c
--- /dev/null
+++ b/src/commands/commit.rs
@@ -0,0 +1,16 @@
+use crate::head;
+use crate::models::{commit, index};
+// XXX NOT TESTED
+pub fn commit(message: String, allow_enpty: bool) {
+    let index = index::Index::new();
+    // XXX true 需要替换为 index.is_empty()
+    if true && !allow_enpty {
+        println!("工作区没有任何改动，不需要提交");
+    }
+
+    let current_commit_hash = head::current_head_commit();
+
+    let mut commit = commit::Commit::new(&index, vec![current_commit_hash], message);
+    let commit_hash = commit.save();
+    head::update_head_commit(&commit_hash);
+}