The invention provides a self-adaptive deformation inverted siphon which comprises a flexible water pipe, a deformation compensator and a pipe extension section, wherein the flexible water pipe is laid along the section of the river bottom, and the deformation compensator and the pipe extension section are arranged on the flexible water pipe. One end of the flexible water pipe is connected with a water inlet pond at the tail end of a water inlet ditch, the other end of the flexible water pipe is connected with a water outlet pond at the head end of a water outlet ditch, a water inlet control valve is arranged at one end of the flexible water pipe, and a water outlet control valve is arranged at the other end of the flexible water pipe. A fixed anchor block and an assembled anchor block are arranged on the flexible water pipe, the fixed anchor block is used for fixing the flexible water pipe above water, and the assembled water pipe is used for fixing the flexible water pipe under water. Intercepted irrigation ditches can be connected again through the self-adaptive deformation inverted siphon, it is ensured that the irrigation ditches cannot be damaged any more in the process of follow-up continuous deformation, and therefore, influences of subsiding basins in the mining area on the structural safety of ditch water conveyance structures are avoided. The self-adaptive deformation inverted siphon is simple in structure, convenient to install and maintain, and capable of being widely applied to ditch system construction and reparation projects in the mining area.