Abstract: The geometry of the rake face in a power skiving cutter is a critical factor influencing cutting forces, cutting heat, and machining accuracy. Based on the finite element simulation method, simulation models for two types of rake face cutting tools (curved surface and planar) were constructed. For three different cutting conditions, the analysis was carried out regarding the distribution of cutting rake angle and the cutting force and heat characteristics. The conclusions were verified through the cutting experiments of circular arc tooth power skiving cutter. The results indicate that the optimized curved rake face provides a larger and more uniformly distributed cutting rake angle along the cutting edge, effectively reducing the peak cutting force. Regarding thermal characteristics, the curved rake face not only significantly lowers the maximum cutting temperature but also expands the distribution area of the high-temperature zone. This leads to a more uniform temperature field, reduces the total amount of cutting heat generated, and mitigates localized heat concentration. These findings reveal the intrinsic relationship between the optimization of the cutting rake angle and the resulting cutting forces and temperature field. Experimental verification confirms the advantages of the power skiving cutter with a curved rake face in terms of reduced cutting force, improved thermal distribution, decreased tool wear, and enhanced machining accuracy. This research provides theoretical reference and technical support for the structural optimization and service life improvement of power skiving tools.