The invention relates to a portable metal heat preservation pot for children. The portable metal heat preservation pot comprises an external cup cover, a cup rabbet, a portable belt, a cup body, a protrusion, handles, a clamping ring, a cup handle, a water outlet, an internal cup cover, a water nozzle, a plugging block, an inner wall layer, a vacuum thermal insulation layer, a high-density copperplating layer and an outer wall layer; the cup body viewed from the side face is rectangular, and the cup body is composed of the inner wall layer, the vacuum thermal insulation layer, the high-density copper plating layer and the outer wall layer in sequence from inside to outside; the two sides of the cup body are provided with semi-circular arc handles, and the handles and the cup body are in an integrated structure; the middle portion of the cup body is provided with the semi-circular arc protrusion, and the protrusion and the cup body are in an integrated structure. Through the improvement of the portable metal heat preservation pot for the children, the portable metal heat preservation pot for the children has the advantages that the carrying is lighter and more convenient, the thermal insulation property is more excellent, cleaning is easy, and rusting is not easy, thereby effectively solving the problems and disadvantages in the background technology.