Inland shallow water area multi-beam sounding device

The utility model provides an inland shallow water area multi-beam sounding device, which comprises a ship body, a fixing assembly and a limiting assembly, and is characterized in that the fixing assembly comprises a first fixing plate, a first connecting rod, a second connecting rod, a first plate body, a second plate body, a connecting plate, a multi-beam sounder body, a first balancing weight and a fixing bolt; the first fixing plate is installed on a ship body, and one end of the first connecting rod is welded to the front surface of the first fixing plate; according to the utility model, through the arrangement of the first balancing weight and the dead weight of the multi-beam depth sounder body, the gravity center of the multi-beam depth sounder body is always downward, and when the ship body shakes, the second connecting rod is rotated outside the first connecting rod, so that the shaking amplitude of the multi-beam depth sounder body is reduced, the later calibration work is reduced, and the working