Automatic meal selling machine capable of achieving intelligent heating, heat preservation and moisture preservation

An automatic meal selling machine capable of achieving intelligent heating, heat preservation and moisture preservation comprises a heat preservation perspective door and a box body, an electric control door lock is electrically connected with a center control system, a user scans a two-dimensional code on the heat preservation perspective door through a mobile phone to complete identity authentication, and the electric control door lock is automatically opened. A user takes away purchased commodities from the cabinet, and the heat preservation perspective door is automatically closed and locked. The box body is of a double-box-body structure including an outer heat preservation box body and an inner storage box body, an uncovered heating water tank is defined by the inner bottom of the outer heat preservation box body, and the electric heating pipe is inserted into the heating water tank and electrically connected with the central control system. A digital camera is installed in the middle of the top of the