The invention discloses a multi-functional suitcase. The suitcase comprises two opposite panels, two opposite side panels and two opposite end panels, at least one panel is movably connected to the side panels, the interiors of the panels accommodate at least one support rod in a disassembly way, and the interiors of the side panels accommodate at least one telescopic rod in a disassembly way. According to the multi-functional suitcase, by flexibly connecting at least one panel to the side panels, the panel can increase the areas of the side panels, so that the lengths of the side panels are normal to form a structure similar to a bed which can meet the requirements of goods storage during a journey and sitting, crouching and lying of people, moreover, by arranging the support rod inside the panels and the telescopic rod inside the side panels, the support rod and the telescopic rod can be combined in various ways to form a structure similar to a stool. The multi-functional suitcase maximizes the multiple functions of the multi-functional suitcase and relieves travel fatigue.