diff --git a/formula/abs.go b/formula/abs.go
new file mode 100644
index 0000000000000000000000000000000000000000..dad45d595c1e66f3fd78f7f367e9cb79ac0bbea7
--- /dev/null
+++ b/formula/abs.go
@@ -0,0 +1,12 @@
+package formula
+
+import (
+	"gitee.com/quant1x/pandas"
+	"gitee.com/quant1x/pandas/stat"
+)
+
+func ABS(S pandas.Series) pandas.Series {
+	s := S.Float()
+	d := stat.Abs(s)
+	return pandas.NewSeries(pandas.SERIES_TYPE_FLOAT32, "", d)
+}
diff --git a/formula/abs_test.go b/formula/abs_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..39a05597028eda030848d1291503fae624127abd
--- /dev/null
+++ b/formula/abs_test.go
@@ -0,0 +1,14 @@
+package formula
+
+import (
+	"fmt"
+	"gitee.com/quant1x/pandas"
+	"testing"
+)
+
+func TestABS(t *testing.T) {
+	v1 := []int32{1, -1, 2, -2}
+	s := pandas.NewSeries(pandas.SERIES_TYPE_FLOAT64, "", v1)
+	fmt.Println(ABS(s))
+
+}