A direction indication light installed on a handle of a car door comprises a body; a front edge thereof installed with a receiving groove; the receiving groove received with a plurality of circuit boards, a light guide plate, and a cover; each circuit board being installed with light emitting body; upper sides of the circuit boards being installed with a light guide plate for receiving the circuit boards; the power wires of the circuit boards serve to light up the light emitting body of at least one of the circuit boards. By the indication light, the periphery of the car is lighted up so that cars at the periphery of the car can keep attention to the state of the car to prevent from collision due to weak view.