The present invention provides a removable portable computer device. In an embodiment, the portable computer device includes: a flat panel computer; a base; a back plate; a first connection structure through which the base is connected with the back plate; a second connection structure through which the back plate is connected with the flat panel computer. The flat panel computer is removably connected onto the back plate through the second connection structure. In the present invention, the flat panel computer is removably mounted on the back plate through the second connection structure. When the computer is required to be used at other location and a mass of keyboard input is not needed, it only requires to take off the flat panel computer from the back plate so as to easily carry the computer from one location to another location for use, thus the portability is greatly increased.