The invention discloses a solid-liquid separation machine for a plant extracting solution. The solid-liquid separation machine comprises a separation machine body; a liquid inlet funnel is arranged on the top of the separation machine body and is internally provided with a funnel-shaped filter screen; brush rods are arranged below the filter screen; the bottom of the liquid inlet funnel is connected with a separation rotary pipe; a plurality of filter pipes are connected to the side wall of the separation rotary pipe; a filter screen is arranged at the orifice of the lower end of each filter pipe; an opening is formed in the bottom of the separation machine body and is filled with a pressure filtering rod; a pressure plate is connected to the bottom end of the pressure filtering rod and is arranged in a pressure filtering cavity; liquid conveying holes are formed in the pressure filtering rod and the pressure plate respectively; a pressure filtering screen is arranged in the pressure filtering cavity; and a liquid collection cavity is arranged below the pressure filtering cavity. By adopting the separation machine provided by the invention, the effect of plant solid-liquid separation can be greatly improved through multiple procedures; and a great amount of residual silky plant fibers in the extracting solution are removed, so that the purity of the extracting solution is improved, the quality of the extracting solution is avoided from lowering caused by residual slag, the separation efficiency is accelerated, and the production efficiency is improved.