The invention discloses an underground pipeline detection device. The objectives of the invention are to improve underground pipeline detection positioning precision and acquire specific distributioninformation of underground pipelines. The device comprises a support, a controller, at least two signal emitters and at least two signal receivers, wherein the controller, the signal emitters and thesignal receivers are installed on the support. The signal emitters and the signal receivers are connected with the controller. The signal receivers are used for receiving signals emitted by the signalemitters. The controller is used for extracting signals reflected by the underground pipelines from the signals received by the signal receivers, and acquiring position information of the undergroundpipelines according to the reflected signals.