Combined with the construction process of three span continuous beam bridge, a finite element analysis model was built by using Midas software. According to the process of cantilever construction of the bridge, the simulation analysis of bridge was completed. According to the actual monitoring data, construction process could be controled. Calculation and field test data shows that: each monitoring section beam should be calculated value and themeasured value is in the safe range; beam shape control is more appropriate, after the closure of the overall alignment more smoothly, to achieve the desired objectives, meet the design requirements, achieve the purpose of bridge construction monitoring. The bridge construction controlprocess can be used as a reference of similar bridge.