The invention discloses a bioexperiment extraction device. The device comprises a workbench, a culture dish, a liquid storage tank, a feeding hopper, a stirrer, a mounting support, an electric-control pump, an electric heating plate and a vacuum extraction pump, wherein the culture dish, the liquid storage tank and the mounting support are all installed on the workbench, the mounting support is located at one side of the liquid storage tank and extends to the portion above the culture dish, the stirrer is arranged on the mounting support and extends downwards into the culture dish, the electric-control pump is arranged on the mounting support and is connected with the stirrer, the electric heating plate is arranged at the bottom of the culture dish, and the vacuum extraction pump is arranged at one side at the lower portion of the culture dish. Through the mode, the bioexperiment extraction device is simple in structure, safe, environmentally friendly, high in heating speed, and capable of filtering impurities and facilitating extraction, and can more accurately and precisely conduct operation of liquid transferring, liquid extracting, liquid adding and extracting and the like, and thus the bioexperiment extraction device improves the working efficiency.