The invention discloses a laparoscopic surgery simulation training system based on computer aided medical display. A CT data preprocessing module, a CT organ segmentation module and a three-dimensional volume rendering module can use artificial intelligence and a 3D volume rendering integrated rendering technology to construct a three-dimensional abdominal cavity model in real time according to customized CT scan data of a patient. A volume data mechanics loading module, a joystick control module and a joystick mechanics feedback module are used to establish an accurate force feedback model and a tissue deformation model. Simulated actual laparoscopic surgical instruments are used and the joystick mechanics feedback module is combined to truly simulate the operation position and operationmode of surgical instruments. The real-time stress state of organs and tissues can be accurately fed back. Soft tissue deformation or a cutting effect can be truly reproduced. The system can accumulate real operation experience for a laparoscopic operator, can improve the operation skills of the laparoscopic operator, and can help the laparoscopic operator to be proficient in the relative depth ofa surgical instrument and a lesion organ.