The utility model relates to a four-colour hand generating flashlight which is composed of a casing, a luminous part and a hand generating device, wherein, the casing is a transverse cross-section in the short shape, the luminous part is provided with coloured lamp bulbs which are in four colours, and the hand generating device is composed of a driver, a transmitting device and a generating part. The casing of the utility model and the transmitting device of the hand generating device are made of plastics. In addition, to a sliding switch, the electric part has no other movable piece. The utility model has the advantages of small size, light weight, high durability, convenience for carrying, no use of battery, etc. The four-colour light of the utility model increases the operator's interests.