In this paper, a simple supported to continuous small box beam skew bridge is taken as an example to conduct static load tests. Firstly, a finite element model of the bridge is established by using Midas Civil to obtain the theoretical bending moment of the precast beam. Then, the measurement point arrangement and loading program of the precast beam are designed. Finally, the load is applied to the precast beam in multiple stages, and displacement and strain data are measured. Through the analysis of displacement and strain, the research results show that the precast beam is in an elastic working state, the strain conforms to the assumption of a flat section, and the bearing capacity and stiffness meet the use requirements.