The invention discloses a shooting mechanism and a connector pin true position detection method. The shooting mechanism comprises a support frame, a lifting frame connected with the support frame through a lifting adjustment device, a rotary arm rotatably arranged on the lifting frame and capable of rotating around the central axis of a support shaft relative to the lifting frame, a first lockingdevice for locking the rotary arm onto the lifting frame, a sliding table connected with the rotary arm through a first adjustment device, a camera assembly arranged on the sliding table and used forshooting a connector pin, a swinging frame capable of rotating around the central axis of the support shaft relative to the rotary arm, a second locking device for locking the swinging frame onto therotary arm, and a light source device arranged on the swinging frame and used for providing illumination when the camera assembly is used for shooting the connector pin. The shooting mechanism provided by the invention can be applicable to connectors in different sizes; and in addition, through adopting a linear scanning camera, a stable image with an outstanding characteristic can be obtained, sothat the detection result is stable, reliable and high in accuracy.