Aiming at the shift process of the wet clutch used in tractors, and based on the analysis of the service time and shift time of the traditional tractor gear, it simulated and analyzed the heat transfer of the wet clutch during continuous shift gear and the temperature rise characteristics under different shift frequencies, which a one-dimensional simulation model was established by AMESim software and the heat transfer with the clutch hub was considered. The results show that the temperature increase is less than 1 ℃ after 7 consecutive shifts. While with the acceleration of gear shifting frequencies, the rising amplitude of the maximum temperature increases gradually after continuous gear shifting. Instantaneous heat transfer quantity of friction plate is in the order of oil, steel plate and clutch inner hub from more to less. Instantaneous heat transfer quantity of steel plate is friction plate, oil and clutch outer hub from more to less. The instantaneous heat transfer quantity with the clutch hub is less than 40 W, which is lower than 5% of the instantaneous heat transfer quantity of the oil.