An antenna communication method and device are provided. The antenna communication method includes: establishing a communication tunnel between a Customer Premises Equipment (CPE) and a mobile terminal; receiving, by the CPE, a first request message sent by the mobile terminal; receiving, by the CPE, first communication data of the mobile terminal through the communication tunnel after receiving the first request message, and sending the first communication data to the BS according to the air interface connection information in the first request message; and receiving, by the CPE, second communication data sent by the BS according to the air interface connection information in the first request message, and sending the second communication data to the mobile terminal through the communication tunnel.