Building main body construction method and floor slab pouring auxiliary device

The invention relates to a building main body construction method and a floor slab pouring auxiliary device. The building main body construction method mainly comprises the following steps that S1, a building main body is divided into a plurality of construction sections which are sequentially arranged from top to bottom, each construction section comprises a plurality of floors, and hoisting of vertical components of all floors of the first construction section at the bottommost position is completed firstly; S2, hoisting of steel structure beams of all floors of the first construction section is completed; S3, formwork materials of floor slabs of all floors in the first construction section and formwork materials of floor slabs of the bottommost floor of the second construction section are hoisted to the corresponding floors; S4, each vertical concrete component of the first construction section is poured; S5, a floor slab of the bottommost floor of the second construction section is subjected to pouring fo