Electromagnetic flowmeter

The electromagnetic flowmeter comprises a shell, an inner shell and an electric control module arranged in the inner shell, the shell comprises an outer shell, the inner shell comprises a fixed shell and a fixed cover which are connected with each other, the electric control module is fixed between the fixed shell and the fixed cover, and the electric control module comprises a control panel, a power panel and a wiring board. A first fixing groove and a second fixing groove are formed in the fixing shell, the control panel and the power panel are inserted into the first fixing groove and the second fixing groove respectively, the wiring board is fixed to the rear side of the fixing shell, and a positioning groove is formed in the outer side wall of the fixing shell. The position of the positioning protruding block corresponds to the position of the positioning groove, and the positioning protruding block can be inserted into the positioning groove. According to the invention, wiring can be facilitated, wiring