For cantilever pouring prestressed concrete continuous beam, it is very important to ensure the safety and stability in the construction process of continuous beam T structure. Taking tongren Road north Extension project (56.5+95+66.5) M continuous beam as an example, this paper introduces the design and construction of temporary consolidation and support system of 0# block. The maximum unbalance bending moment, vertical reaction force and anchoring length of embedded steel bar are calculated in detail. Midas software is used to establish the relevant model, the force analysis of the support system checking calculation, and the support system construction steps are introduced, the construction results show that: the construction process of the scheme is safe and reliable, the construction quality is guaranteed, and can be reused, reduce the construction cost, to provide reference for similar engineering construction.