In order to solve the problem of concentrated collection of pond sediment,a sediment collection device was designed. It mainly consisted of suction device, travelling mechanism, control system and floating pipeline. The suction device can lift the sediment to the bank by the sewage pump. The DC propeller of travelling mechanism provided power. The control system controlled the working state of the sewage pump and the two propellers to achieve normal operation of the device. Results of a series of tests on the mechanical properties revealed:The speed should be controlled within 0.1 m/s in working operation;Staying between 20-40 s, the fixed point of sediment can be completely sucked; The capacity of sewage suction was 0-14 m³/h; The mud content was 0-12.7 m³/h; The sediment concentration was 0-35%; The power of machine supporting was 0.9 kW;The idle running noise was 52 dB; the transmission distance was 100 m. The sediment device for pond culture used 220 V AC power is the power source. The power is isolated from the power grid by an isolation transformer, and then sent to the control platform of the sediment device for pond culture. It is high safety. The machine has the characteristic of large working area, which is conducive to the collection of pond culture sediment.