This paper introduces the design and application of a new walking type jacking device in the construction of multi-point synchronous continuous jacking of Bridges in Kunming. The device adopts 3D simulation and finite element design. It is a new generation bridge push construction device integrating push, translation and lateral correction. It has the characteristics of modularity, small volume, light weight, accurate and reliable execution of push cycle action and wide adaptability. The biggest advantage of the device is that there is a sliding surface in the device, and the sliding surface is not at the bottom of the bridge, between the slide box and the slide way, so that the force of the bridge and the pier structure is improved during the pushing process, and there is almost no damage to the bridge and the pier.