The casing of the camera module is composed of two housings. The first housing has a base part provided with an opening for attaching a object side fixed lens and a first and second side walls extending from the base part, large cutout openings being formed between the side walls. Moving lens holders are inserted from the open side facing the base part of the first housing to be assembled to the first housing. A driving motor is bonded to a side wall of the second housing. After the first housing to which the lens moving mechanism, etc. are assembled and the second housing to which the driving motor is fixed, adjustment the lens moving mechanism, etc. can be done easily. The first and second housing are joined together with a single bolt and a single joining part joining by means of an adhesive agent.