The invention discloses a joint recognition method of mobile phones in and out of Seismic ruins based on multi-point MAC and field intensity. The method comprises the following steps: distributing multiple WiFi hotspot equipment at a detection region, and turning the equipment to collect the field intensity and MAC address of a mobile phone, and sending the collected field intensity and the MAC address information to an information processing platform through the wireless communication WiFi so as to recognize the mobile phone; and then comparing the received statistic information with the first stage field intensity judgment threshold to determine out-ruins mobile phone attaching to the surface personnel, initially screening the in-ruins mobile phone attaching to the seismic trapped person; and finally judging the mobile phone attribute of the initially screened in-ruins mobile phone through the second stage MAC address judgment threshold comparison, thereby achieving a target of recognizing the mobile phones in and out of the ruins. By use of the method disclosed by the invention, the in-ruins mobile phone attaching to the seismic trapped personnel captured by the WiFi hotspot equipment can be recognized, the foundation for further determining the position of the seismic trapped personnel associated with the in-ruins mobile phone is laid, and the efficiency and the accuracy of searching and rescuing the seismic trapped personnel are guaranteed.