A portable VOIP wireless connector comprising: a USB connecting interface used as an interface for connecting a computer; a multimedia chip for controlling sound effect to transmit to a wireless module; a USB controller to control the ROM and the flash memory; the wireless module used to convert a sound effect into radio frequency signals for transmitting; the flash memory to store variable data; and the ROM to store invariable data (such as VOIP software). The wireless connector is inserted into a USB connecting port of the computer, the computer automatically executes the VOIP software in the ROM and inputs related parameters for setting up, and sends radio frequency signals via the wireless module to the wireless devices, so that a user can proceed to voice conversation, and can save the cumbersome software activating procedure and can be free of tangling by wires.