To reveal the force transmission mechanism of a novel steel-concrete joint in the large-span hybrid continuous girder bridges， a large-scale model of a steel-concrete joint with a geometric scaling ratio of 1∶3.5 was designed and fabricated based on the Fuzhou Mawei Bridge. And a refined solid finite element method was also used for static loading analysis under different design load combinations. The results show that， under the load-bearing capacity limit state condition， the concrete girder section of the joint model was fully compressed. The maximum compressive stress of the top-plate concrete at the joint surface was -23.6 MPa， while the maximum tensile stress of the bottom-plate steel was 115.8 MPa. These values were much smaller than the design value of material strength. When under 1.4 times the load-bearing capacity limit state condition， the test model of the steel-concrete joint exhibited no marked damage during the static loading process. The load-displacement/strain curves of measuring points on each control section basically showed a linear relationship， and the structure was always in an elastic working state， indicating that the joint had sufficient safety reserves. The vertical deformation of each section of the steel-concrete joint had no sudden change along the longitudinal direction， indicating that the force transmission of the joint was smooth， which can ensure that the rigidity of the main girder was steadily transitioned from the concrete to the steel box girder section. The relevant research findings can provide a reference for the design and construction of such hybrid continuous girder bridges in the future.