The utility model relates to a technical field of cold chain transportation relates to a collapsible insulation can especially, include: outer box, closed outside on the box open closed case lid and inner container box, inner container box includes: the roof, roof fixed connection is inboard in the case lid, the bottom plate, two first curb plates that the parallel is relative, first curb plate and the internal wall fixed connection of outer container, with two second curb plates that the parallel is relative, the second curb plate comprises mutual rotatable coupling's first connecting plate and second connecting plate first connecting plate and the internal wall fixed connection of outer container, the second connecting plate can be dismantled with the internal wall of outer container and be connected, bottom plate rotatable coupling follows under arbitrary one block first curb plate, first curb plate is connected with the contact of second curb plate, the length of second curb plate is less than the half of first curb plate length. The utility model provides a collapsible insulation can has solved the relatively more troublesome problem of the destruction of heated board that just causes easily of the folding mode of insulation can.