The invention discloses a multifunctional antitheft wallet. The multifunctional antitheft wallet comprises a wallet belt and a foldable bag body, wherein a power supply pocket is arranged at one side inside the bag body, the other side is provided with a money and card pocket, and a power bank is arranged in the power supply pocket; and an alarming device electrically connected with the power bank and a tension switch electrically connected with the alarm are disposed between the power supply pocket and the money and card pocket in the bag body, and the wallet belt is connected with an operating end of the tension switch, so that when the tension switch suffers a force greater than 50N, the alarming device is triggered to issue an alarm. The multifunctional antitheft wallet can issue the alarm in the act of stealing so as to frighten the thief, so that the thief can give up the stealing.