The utility model provides a no-rivet door structure for a refrigerated container, which comprises a door frame, the inner edge of a frame body of the door frame is provided with a groove section, an outer door plate spliced into the groove section of the door frame, an insulation foam layer positioned at the inner side of the outer door plate. A pair of lug bosses is formed and rises up in the opposite direction on the opposite inner walls of the groove section. The pair of lug bosses has a difference in height and a level interval between the pair of lug bosses is no more than the thickness of the outer door plate, thus clamping the outer door plate to lead the door plate and door frame to be sealed. By adopting the no-rivet door structure of the utility model, when the outer door plate is inserted into the door frame, the lug bosses impose certain pretightening force to the door plate, thus achieving better sealing performance and preventing the plate surface from being polluted caused by the leaking of foaming liquid during the frothing course.