The invention relates to a rapid-assembled light box body portable dwelling. The portable dwelling is characterized by comprising a top frame, a bottom frame, a plurality of upright columns, a floor,layering tiles, a window body wall panel, a door body wall panel and a plurality of wall panel bodies, wherein the top frame comprises a top frame beam, a plurality of top purlins, and the top purlinsare hung on the top frame beam; the bottom frame comprises a bottom frame beam and a plurality of layering purlins, and the layering purlins are hung on the bottom frame beam; the lower ends of the upright columns are arranged at the side edges of the bottom frame beam, the top frame beam is arranged above the bottom frame beam, the upper ends of the upright columns are connected with the side edges of the top frame beam, side installation cavity ports are formed in the parts between the adjacent upright columns, the window body wall panel, the door body wall panel and the wall panel bodies are arranged in the side installation cavity ports, the floor is arranged on the layering purlins, the layering tiles are arranged on the top purlins, and the side edges of the layering tiles are located on the top of the top frame beam. The portable dwelling has the advantages of scientific and reasonable structural design, high reliability, long service life, high assembling efficiency and the like.