A small turbulence electrowinning test device, on the basis of a single turbulence electrowinning pilot device that can produce metal plates, has carried out a series of optimization and improvement, and added a series of solution reversing, powder collection and other devices. Under the control of the automatic control system, it can realize the recovery of cash powder. The utility model can be used for turbulence electrowinning pilot test, intermediate test, expansion test, and also can be used for the recovery of precious and heavy metals, The device features compact layout, small floor area, high degree of automation, reduced labor intensity, reliable and stable operation, and effectively reduced the investment costs and corresponding additional costs of scientific research units and production units.