Structure of partition body component of mid peg, platform pillar or reserve opening during basement digging and structure body construction and construction method thereof achieving requirement of personal safety and construction quality

A process of building structure basement digging and structure body construction is to mount partition body component at a plurality of mid pegs, a plurality of platform pillars or reserve opening positions. The partition body component is formed by combining a plurality of combination type board bodies, and its construction steps comprise mounting the combination type board bodies between the bottom formwork and the lower layered rebar, between the lower layered rebar and the upper layered rebar, and above the upper layered rebar. After completing the pouring and curing of the concrete, the bottom formwork is removed. The foregoing steps are repeated until the plurality of floors in the basement are completed with concrete pouring. The plurality of med pegs and the plurality of platform pillars are removed. The plurality of partition body components are removed and formed with an opening to pour and backfill the concrete so as to seal the opening so that the invention effectively protects labor safety and ta