A circuit board is accommodated in a camera-housing and a connector housing portion formed integrally with the camera housing. An interior wiring has its one end connected to the circuit board and the other end connected to a connector terminal in a pressing state. The connector terminal is accommodated to be held in the camera housing, so that an external connecting connector portion is formed. An external connector located at an external harness is connected to the external connecting connector portion, so that a vehicle mounting camera apparatus is connected to an external apparatus through an external harness.