A strip lamp includes a housing, a mask, a light source module and two end covers. The two end covers are arranged at both ends of the housing and form an accommodating chamber with the housing. The accommodating chamber extends along the length direction of the housing, and the light source module is accommodated in the accommodating chamber; the mask includes a light exiting part, a connection part formed by bending towards each other and extending from both sides of the light exiting part, and a pressing part formed at the end of the joint part. The first depression is formed between the joint part and the pressing part, two sides of the housing are extends towards each other to form a buckle part; the light source module includes a circuit board and a light emitting body arranged on the outer surface of the circuit board.