The sliding process in the friction pair involves highly nonlinear behavior, and the temperature field of the friction pair is affected by numerous parameters. To gain a comprehensive understanding of the temperature field distribution in the friction pair of a hybrid electric vehicle clutch, a thermal structure coupling analysis model of the hybrid electric vehicle clutch was constructed to simulate the sliding process. Building upon this model, an in-depth study was conducted to analyze the impact of various parameters, such as initial speed, engagement oil pressure, dual steel plate thickness, and friction lining material, on the temperature field of friction pair.