Indoor lifting type assembling operation platform and construction method thereof

According to the indoor lifting type assembling operation platform and the construction method thereof, arrangement of platform unit modules is determined, sling positioning holes are formed in an upper floor of a room according to the arrangement condition, and manholes are formed in the upper floor and located at the lifting position of the first unit plate; the unit plates are pre-assembled on the ground, and the supporting columns are embedded between the inner circular beads on the outer sides of the four corners of the adjacent frame keels. Top discs fixed at the tops of the supporting columns are arranged at the tops of the adjacent frame keels and are inserted into second fixing pin insertion holes formed in the top discs and first fixing pin insertion holes formed in the four corners of the frame keels through fixing pins, and bottom discs fixed at the bottoms of the supporting columns are arranged at the bottoms of the adjacent frame keels; the slings penetrate through the formed sling positioning h