The utility model belongs to the technical field of lighting lamps, and provides a head lamp which comprises an upper shell, a lower shell, a clamping part and an accommodating part. A main LED lamp body is mounted in the middle of the upper shell, side LED lamp bodies are mounted on the two sides of the upper shell, a transparent hood is mounted on the periphery of the main LED lamp body, heat dissipation pieces are mounted on the lower portion of the main LED lamp body, a circuit board is mounted between the upper shell and the accommodating part, the main LED lamp body and the side LED lamp bodies are electrically connected with the circuit board, and circuits on the circuit board comprise a battery pack, a bigrid field-effect tube Q1, a switch unit, a main light emitting unit and side light emitting units. The main light emitting unit comprises a main control chip U1, a red light emitting lamp LED1, a green light emitting lamp LED2, a blue light emitting lamp LED3, a resistor R6, a resistor R7, a resistor R8, a zener diode D1 and a resistor R3. The head lamp has the advantages that the chip is used for controlling LEDs in the head lamp to emit light, using safety and stability are guaranteed, the whole circuits are high in response speed and good in heat dissipation performance.