diff --git a/strings/stringsutil.go b/strings/stringsutil.go
index 6698754..4b71999 100644
--- a/strings/stringsutil.go
+++ b/strings/stringsutil.go
@@ -302,3 +302,13 @@ func IndexAny(s string, seps ...string) (int, string) {
 	}
 	return -1, ""
 }
+
+// ContainsAll returns true if s contains all specified substrings.
+func ContainsAll(s string, ss ...string) bool {
+	for _, sub := range ss {
+		if !strings.Contains(s, sub) {
+			return false
+		}
+	}
+	return true
+}
diff --git a/strings/stringsutil_test.go b/strings/stringsutil_test.go
index 9d0dbab..c563fc0 100644
--- a/strings/stringsutil_test.go
+++ b/strings/stringsutil_test.go
@@ -390,3 +390,20 @@ func TestIndexAny(t *testing.T) {
 		require.Equal(t, test.expectedSep, sep)
 	}
 }
+
+func TestContainsAll(t *testing.T) {
+	tests := []struct {
+		s      string
+		ss     []string
+		result bool
+	}{
+		{"abcdefg", []string{"a", "b"}, true},
+		{"abcdefg", []string{"a", "z"}, false},
+		{"abcdefg", []string{"a", "b", "c", "d", "e", "f", "g"}, true},
+		{"abcdefg", []string{"a", "b", "c", "d", "e", "f", "g", "z"}, false},
+	}
+	for _, test := range tests {
+		res := ContainsAll(test.s, test.ss...)
+		require.Equal(t, test.result, res)
+	}
+}