diff --git a/dataframe_fillna.go b/dataframe_fillna.go
new file mode 100644
index 0000000000000000000000000000000000000000..9665cf207ec8c53d22676fd0087ebcc0c18b7bc9
--- /dev/null
+++ b/dataframe_fillna.go
@@ -0,0 +1,10 @@
+package pandas
+
+// FillNa dataframe实现FillNa
+func (self DataFrame) FillNa(v any, inplace bool) {
+	for _, series := range self.columns {
+		if series.Len() > 0 {
+			series.FillNa(v, inplace)
+		}
+	}
+}
diff --git a/dataframe_test.go b/dataframe_test.go
index 3283c08819f02eac68c734a9a0c4e96f4e625a9f..f1ef0733b183b07f286b83a4fcf9365bd3877cad 100644
--- a/dataframe_test.go
+++ b/dataframe_test.go
@@ -17,6 +17,8 @@ func TestDataFrameT0(t *testing.T) {
 	s2 := s1.Shift(-2)
 	df := NewDataFrame(s1, s2)
 	fmt.Println(df)
+	df.FillNa(0.00, true)
+	fmt.Println(df)
 
 	_ = s2
 }