Multifunctional stable offshore wind power generation foundation pile

The invention discloses a multifunctional stable offshore wind power generation foundation pile which comprises a chassis, a foundation pile body, a tensioning mechanism, a protection mechanism and an auxiliary stabilizing mechanism. The foundation pile body serves as the center, the auxiliary stabilizing mechanism is installed at the external expansion position of the center of the foundation pile body, four sets of auxiliary supporting pieces are installed in the auxiliary stabilizing mechanism, the auxiliary supporting pieces can be stably inserted into a seabed, and the auxiliary supporting pieces are supported and limited through the adjustable limiting assemblies; the auxiliary supporting piece can be connected with a tensioning mechanism arranged on the outer side of the foundation column body through a steel cable, the connected steel cable is tensioned through the tensioning mechanism, the lower end position of the foundation column body is stabilized, shaking of the foundation column body is avoided