Concrete pouring construction method for newly-added shear wall under existing beam in housing construction project

The invention discloses a concrete pouring construction method for a newly-added shear wall under an existing beam in a house building project. The concrete pouring construction method comprises the following steps that 1, lofting is conducted, and the position and the model of a drilling hole are positioned; 2, drilling and hole cleaning are carried out; step 3, planting steel bars; 4, steel bar binding is conducted after steel bars are planted on the shear wall up and down at the same time and solidified; 5, a formwork is erected, a material filling hole is formed in the structural floor slab on the side of the existing structural beam, the material filling hole communicates with the side face of the top of the formwork through a material filling hopper, and exhaust pipes are arranged on the two sides of the top of the formwork; 6, concrete is poured into the formwork, the two sides of the formwork are vibrated through a vibrating bar while pouring is conducted, pouring is stopped when the position 10 cm aw