The invention discloses a maglev train positioning method based on a double-loop communication network, comprising the following steps: S1, controlling a base station to send train positioning requestinformation via an antenna through an optical fiber network; and returning the response information after the train receives the train positioning request information. S2, taking the base station receiving the response information in the preset time is used as the positioning base station; S3: obtaining the train position according to the signal receiving and transmitting time of the positioningbase station. The maglev train positioning method based on the double-loop communication network of the invention measures the distance between the train and the base station to carry out the measurement of the train position, does not need to change the line hardware of the maglev train by a large margin, and only needs the communication between the base station and the train to realize the measurement of the train position, thereby effectively reducing the cost.