Tunneling jet-flow type ditching plough

The utility model discloses a tunneling jet-flow type ditching plough comprising a frame body, a pipe-laid ploughshare installed on the frame body and a submersible pump, wherein a hydraulic tunneling device is also connected to the frame body, positioned in the front of the pipe-laid ploughshare, articulated with the frame body and provided with a lifting mechanism; and a tunneling depth limiting support is connected to the hydraulic tunneling device. As the hydraulic tunneling device is installed in the front of the pipe-laid ploughshare, the tunneling jet-flow type ditching plough utilizes the ploughshare to destroy a hard pan under the condition of harder submarine geology so as to be beneficial to the ejection of high-pressure water and the formation of laid grooves; by utilizing an underwater monitoring system, the tunneling jet-flow type ditching plough avoids the underwater operation of submariners, ensures the rapid formation of the grooves and avoids the adverse influences of rapid siltation and the