The invention discloses a mechanical remote water meter machine electrical synchronous detection system in the technical filed of water meter detection. The top of a rotating disc is provided with a triangular support, the slant outer walls of the two sides of the triangular support are evenly provided with guide guard boards and disassembling mounting plates, the guide guard boards are arranged under the disassembling mounting plates, the top of the triangular support is provided with a rotating handle, the tops of two groups of brackets are provided with a top plate, the center of the top of the top plate is provided with a rotating table through a bearing, a clamp is installed at the top of the rotating table, the left and right sides of the top of the top plate are provided with a support rod and a testing computer respectively, the top of the support rod is provided with a connecting rod, and the other end of the connecting rod if provided with an image sensor device. The mechanical remote water meter machine electrical synchronous detection system is compact in structure and convenient to operate, a remote water meter on the rotating table is electrically driven by utilizing a servo motor to be detected to conduct detection, and matched with a digital image recognition technology, the system is high in work reliability.