Method for improving transmission safety of Bluetooth data

The invention belongs to the field of wireless communication, and discloses a method for improving the transmission safety of Bluetooth data in order to resolve the problem that the Bluetooth data are prone to being attacked by a man-in-the-middle when transmitted, which results in that the transmission safety of the Bluetooth data is seriously affected. According to the method, before connection of Bluetooth equipment, authentication connection is carried out through complexity treatment on a PIN code, a 128-bit initial encrypted secret key is generated, and the transmitted data are encrypted through a modified IDEA encryption algorithm after connection is successful. According to the method, an effective encryption method is used for carrying out encryption in the matching authentication stage and the data transmission stage of the Bluetooth, the Bluetooth data are effectively prevented from being monitored and attacked by a third party in the transmission process, and the transmission safety of the Bluetooth data is guaranteed.