A camera module includes a housing, a lens assembly, and a light-absorbing film. The housing includes a main body and a protrusion or a groove on the main body. The lens assembly includes a lens and a connecting seat. The lens is connected to the connecting seat. A groove or a protrusion is formed on the connecting seat to cooperate with the protrusion or the groove on the main body to connect the housing and the lens assembly. The light-absorbing film is arranged at a joint between the housing and the connecting seat, the light-absorbing film absorbs absorbing light.