A portable terminal, comprising a terminal body and a wireless communication module, wherein the terminal body comprises a front surface and a back surface opposite to each other, side surfaces connected to the front surface and the back surface, and a terminal circuit board disposed in a space defined by the front surface, the back surface and the side surfaces together, and a display region is disposed on the front surface; the terminal body is provided on one of the side surfaces thereof with a slot for the wireless communication module to be inserted therein; and the wireless communication module comprises a module base, a module circuit board fixed on the module base, and an Subscriber Identity Module- SIM card that is fixed on and electrically connected to the module circuit board; wherein the module base is provided at a side thereof with a module antenna electrically connected to the module circuit board, and when the wireless communication module is inserted into the slot on the side surface of the terminal body, the side of the module base where the module antenna is disposed corresponds to an opening of the slot and the terminal circuit board is electrically connected to the module circuit board; characterized in that: disposed at the side of the module base where the module antenna is disposed is a housing baffle used as an antenna support, and a length of the housing baffle used as the antenna support in a direction of the side surface of the terminal body is greater than a length of the rest of the wireless communication module in the same direction, an outer side surface of the housing baffle matches in shape with the side surface of the terminal body, and the outer side surface of the housing baffle is substantially flush with the side surface of the terminal body when the wireless communication module is inserted in the slot; the terminal circuit board is provided with a notch at a side edge thereof, and the module circuit board is disposed within the notch at the side edge of the terminal circuit board when being electrically connected to the terminal circuit board such that the terminal circuit board and the module circuit board are disposed side by side in a same plane when the wireless communication module is inserted into the slot. disposed at the side of the module base where the module antenna is disposed is a housing baffle used as an antenna support, and a length of the housing baffle used as the antenna support in a direction of the side surface of the terminal body is greater than a length of the rest of the wireless communication module in the same direction, an outer side surface of the housing baffle matches in shape with the side surface of the terminal body, and the outer side surface of the housing baffle is substantially flush with the side surface of the terminal body when the wireless communication module is inserted in the slot; the terminal circuit board is provided with a notch at a side edge thereof, and the module circuit board is disposed within the notch at the side edge of the terminal circuit board when being electrically connected to the terminal circuit board such that the terminal circuit board and the module circuit board are disposed side by side in a same plane when the wireless communication module is inserted into the slot.