:In order to study the effects of different load forms and stud arrangement on the slip and deflection of simply supported composite beams, the model was established using the ANSYS finite element software. When the studs are evenly arranged, the degree of agreement between the finite element simulation results and the analytical formula calculation results was analyzed. And the effects of different stud arrangements and different loads on the slip and deflection of simply supported composite beams were studied. The results of the study show that, when the area of the shear diagram is the same and the applied load is symmetrical concentrated load, the slip and deflection of the composite beam are the largest, and the slip and deflection are the smallest when the mid-span is concentrated load. Usually, in order to control the number of studs in the composite beam, the segmental arrangement of studs can greatly reduce the maximum slip and mid-span deflection of the composite beam. Under the action of symmetrical concentrated load, the slip and deflection of the composite beam are the largest. Compared with the calculation results of the analytical formula, the simulation results of the ANSYS finite element model of the composite beam have higher accuracy, which can provide reference for similar engineering calculations.