The arched link slab on hollow-cored slab beam bridge was proposed to solve the problem that the existed bridge link deck structure is liable to fracture and water seepage. The numerical simulation was modeled to analyze the mechanical characteristic of arched link slab. The proper parameters of the arch span and the arch rise were obtained through theory deduction and numerical calculation. Under the action of vehicle load or negative temperature gradient conditions, the tensile stress was delivered from the link slab to the arch by the longitudinal forced rebars, which produced positive moments and compression on the concrete of arch crown. Under the temperature variation of positive gradient, the pressure force was delivered from the link slab to the arch by the longitudinal forced rebars, which produced negative moments and tensile stress on arch crown. The pressure stress on link slab can be transmitted to the arched link slab through the thin steel plates in the seams to keep the arch crown concrete in compression. The effectiveness of the arched link slab was verified by bridge field tests. The results of experiment and finite element analysis show that the concrete of arched link slab is always in compression under the vehicle load and temperature variation, but the poor slip effect between the debonded reinforced steel bars and the concrete is the main cause of the existed debonded rebar link slub fractured.