Wind power blade mold and manufacturing method thereof

The invention discloses a wind power blade mold. The wind power blade mold comprises an upper mold body and a lower mold body which is symmetrically connected with the upper mold body. The upper mold body comprises a metal steel frame which is provided with a blade mold body. The left end of the blade mold body is connected with an arc-shaped steel plate, and a metal end face plate matched with the arc-shaped steel plate is arranged at the left end of the blade mold body. A semicircular metal flange plate matched with the arc-shaped steel plate is arranged between the metal end face plate and the blade mold body. The metal flange plate is fixed to the metal end face plate through connecting parts and positioning bolts. A plurality of bolt holes are formed in the metal flange plate uniformly. The wind power blade mold has the beneficial effects that blades can be produced by cutting blade roots and drilling holes in the blade roots, and blades can also be produced by pre-burying bolt sleeves in blade roots; the semicircular metal flange plate for pre-buried bolts is arranged, so that extension and contraction of the blade mold are consistent with those of blade products, and the problem that the metal flange plate is fixed to the metal steel frame and consequently inconsistency of the extension rate and the contraction rate leads to product defects is effectively avoided.