Mutual supporting type wind power blade capable of preventing blade root from cracking

The invention relates to the technical field of wind power blades, in particular to a mutual supporting type blade root cracking prevention wind power blade. The wind power blade connecting and supporting device comprises a working frame body, a fixing assembly is arranged in a wind power blade connecting and supporting assembly, the working frame body and the wind power blade connecting and supporting assembly form multi-point mutual supporting through the fixing assembly, and meanwhile the wind power blade connecting and supporting assembly is limited; the movable area, blown by wind power, of the wind power blade connecting and supporting assembly in the working frame body is reduced, a blade anti-cracking assembly is arranged in a blade on the surface of the wind power blade connecting and supporting assembly, and the blade anti-cracking assembly is located at the blade root of the wind power blade and used for optimizing the structural strength of an embedded part in the wind power blade connecting and s