Abstract: Tractor hybrid power transmission technology based on PX configuration has been analyzed across core patents through technical roadmap analysis, PX configuration distribution analysis, key applicants and inventors analysis, and power take-off（PTO）methods analysis．Research has indicated that technological evolution in this field presents a trend toward multi-energy coupling and intelligence．A hybrid parallel architecture centered around P2.5 with a dual-motor configuration has become key to achieving breakthroughs in high-end applications．PTO methods for tractors have become highly diversified, and innovation should closely align with actual demands of specific operational scenarios．University research and development has focused on forward-looking exploration and in-depth innovation, and industry-university-research collaboration has become key to addressing existing gaps．