According to embodiments, a semiconductor memory device capable of transmission and reception of information by wireless communication is provided. The semiconductor memory device includes a radio antenna for performing the wireless communication, a nonvolatile semiconductor memory element that stores information to be transmitted and received via the radio antenna, a substrate on which the nonvolatile semiconductor memory element is mounted and a wiring pattern to be connected to the nonvolatile semiconductor memory element is formed, and a switching unit that switches between a state where the wireless communication is permitted and a state where the wireless communication is rejected.