The embodiment of the invention provides a method and device for generating equipment identification information. The method comprises the steps that when Wi-Fi equipment is detected, MAC address information of the Wi-Fi equipment is collected, and target random number negotiated by Wi-Fi detection equipment cluster is obtained; based on the target random number, confusion processing is performedon the acquired MAC address information according to a set confusion processing algorithm; according to a set encryption algorithm, the information obtained after the confusion processing is encrypted, and the encrypted ciphertext information is taken as the identifying information for the Wi-Fi equipment.