Multichannel flow measuring device

The utility model provides a multichannel flow measuring device, which belongs to the technical field of hydrographic survey, the multichannel flow measuring device comprises a plurality of Doppler flow meters and a control main board, the Doppler flow meters are arranged in an array along a first direction of a flow channel, the control main board comprises a controller and a multi-way switch in communication connection with the controller, and the multi-way switch is connected with the controller. And the plurality of Doppler flowmeters are in communication connection with the multi-way switch. Due to the fact that the Doppler flow meters are installed and arranged in an array mode, when the Doppler flow meters are immersed by water flow, the controller starts the Doppler flow meters immersed by the water flow for measurement; when the Doppler flow meters are shielded by obstacles to influence measurement, the other Doppler flow meters continue to measure water areas of different heights, the controller can