Deck building formwork convenient for safe and efficient assembly and disassembly

A deck building formwork capable of being assembled and disassembled, comprising a formwork and a steel support, wherein the formwork comprises an aluminum profile frame and a plywood nested at a top of an inner cavity of the aluminum profile frame;

• the deck building formwork further comprises:
• corner parts, which are detachably fixed at four corners of the aluminum profile frame, a bottom of each of the corner parts being provided with a cylindrical pin extending vertically, and a bottom of the cylindrical pin having a spherical structure;
• an upright post component, a bottom end of which is detachably fixed on a top end of the steel support;
• a support seat vertically sleeved in the middle of the upright post component in a sliding manner, mounting grooves being respectively provided at the positions of top ends of four side walls of the support seat near the corners, and the spherical structure at the bottom end of the cylindrical pin being vertically engaged at the mounting groove;
• and
• a locking block, which is movably sleeved at a lower part of the upright post component, and locks the support seat on the upright post component after moving relative to the upright post component in a horizontal direction.