The invention relates to a method and device for preventing a terminal serial number based on voice
verification, and belongs to the technical field of terminal serial number prevention. The method comprises the steps that equipment is powered on to start
network connection successfully, a random code is generated, first key information of the equipment is encrypted, and the information is sent to a platform for login
authentication; the platform returns the voice code encrypted by the multi-bit random code and the random code to the equipment; bidirectional
verification of the equipment and the platform is realized; encrypting second key information of the equipment, sending the information to the platform, and recording the second key information by the platform; the platform encrypts the equipment UID, the equipment
password and the equipment CTEI code to the equipment, and the equipment performs login registration and is allowed to be online; and the equipment circularly broadcasts the voice codes, meanwhile, the platform is inquired whether a
client carries out binding of corresponding voice code information or not through
polling, when the
client carries out binding matching, the platform returns equipment binding matching success, transmits a
mobile phone number and a communication
password, the platform records and stores equipment information, and equipment login is carried out through the
password in subsequent equipment login.