Disclosed is a semi-automatic scrubbing device. According to the semi-automatic scrubbing device, a lifting adjusting mechanism is arranged on a working platform and is connected with a mechanical arm mechanism, the mechanical arm is further connected with a transmission scrubbing mechanism, and an electric device control mechanism and a cleaning agent circulating mechanism are arranged below the working platform. When the semi-automatic scrubbing device is used, dirty clothes are placed on the working platform and are fixed on the working platform with magnets, a brush is adjusted to be placed on a dirty mark on the clothes, a micromotor rotates to drive the brush to rotate on the clothes, and cleaning agents flow back to a cleaning agent storage tank through a concave reflux groove and a reflux inlet in the working platform. The semi-automatic scrubbing device has the advantages of being good in cleaning effect, high in cleaning efficiency, easy to operate, simple in structure, saving in labor and time, capable of achieving semi-automatic clothes scrubbing and the like.