The invention relates to a portable movable computer case. The computer case comprises a bottom plate, universal wheels, a pull rod, an H-shaped supporting rod, a left lower baffle, a left upper baffle, a right lower baffle, a right upper baffle, an upper baffle front part, an upper baffle middle part, an upper baffle rear part, a lower front baffle part, an upper front baffle part, a lower rear baffle part, an upper rear baffle part, flexible expansion fixing brackets, a displayer, a host, a handle and a moving expansion frame. The computer case can be provided with the displayer and the hostat the same time, and the computer case is fixed by the fixing brackets and capable of being dragged under the action of the pull rod, lifted through the handle and carried with a user through braces; the upper and lower portions of the front, rear, left and right baffles can stretch out and draw back, and the front, rear, left and right baffles can be turned over to be tucked into the size of one baffle; when the computer is used outdoors, the computer case is tucked to form a table top, the pull rod on the bottom and the H-shaped supporting rod form table legs through rotation, and the three parts of the upper baffles are turned over to form a tabouret so that a set of seat can be formed.