Plant extraction device capable of circularly and continuously extracting

The invention discloses a plant extraction device capable of circularly and continuously extracting, which comprises a shell, and supporting legs are arranged at the bottom of the shell. According to the device, crushed plants can be continuously subjected to multiple times of separated extrusion and extraction reaction, so that extrusion is more sufficient, the extraction effect is better, an extracted solution and the crushed plants can be conveniently recycled and can be used again, cyclic extraction can be performed, and the extraction efficiency is improved. A filter screen for placing broken plants can be vibrated while the plants are extracted, so that the broken plants which are tightly compacted and attached to the surface of the filter screen after being extruded are vibrated away, the plants cannot be in a compacted state, and the extruded plants can be dispersed when entering an extracting solution; therefore, the plants can be fully contacted and reacted with the extracting solution, and the cond