Abstract: Objective: In response to the problem of modern tram track bed low construction rate in China, Hshaped precast track slab（hereinafter referred to as H slab）emerges. It is necessary to study the loadbearing and fatigue resistance performance, and verify the engineering feasibility and applicability through application results. Method: A finite element simulation model is established to calculate and analyze the internal forces of H slab under three load conditions: train load, temperature gradient load, and foundation deformation. The reinforcement and crack width of H slab are calculated, its loadbearing and fatigue resistance performance is examined through indoor static load tests and fatigue tests, its actual construction effect and engineering feasibility are verified through onsite installation. Result & Conclusion: The calculation and analysis results show that the internal forces and crack width of H slab under various load combinations meet the relevant specifications. The track slab crack width after indoor static load tests and fatigue tests also meets the specified limits. The onsite installation application demonstrates that the use of H slab can effectively improve construction rate, covered soil thickness, vegetation survival rate, water collection area, drainage efficiency, and construction accuracy compared to conventional castinplace concrete monolithic track bed. The structural design of H slab is reasonable and feasible, providing sufficient strength and durability. Its characteristics of fast construction speed and high construction accuracy align with the construction requirements of modern tram project.