The invention discloses an equal-stress cantilever lever intermediate-pressure type piezoelectric power generation module. The piezoelectric power generation module comprises a piezoelectric power generation plate, an elastic lever and an auxiliary support part, wherein the piezoelectric power generation plate comprises a copper pole plate, a square upper piezoelectric ceramic plate and a square lower piezoelectric ceramic plate, the upper piezoelectric ceramic plate and the lower piezoelectric ceramic plate are pasted on the upper surface and the lower surface of the copper pole plate, the elastic lever comprises an elastic rod, a driving press block and a driven press block, the driving press block is arranged on the upper side of the elastic rod and is near to a bending position, the driven press block is arranged at the end part of the lower side of the elastic rod, the auxiliary support part comprises a concave camber surface bottom plate and a long bolt, the concave camber surface bottom plate, the copper pole plate and the elastic rod are sequentially arranged from bottom to top, and the long bolt passes through a linkage hole of each part to make all parts connected into a whole. The piezoelectric power generation assembly has the advantages of simplicity in structure, high power capacity, low cost, high piezoelectric conversion efficiency, no discomfortableness such as footing lost during stepping, no pollution, long service lifetime and the like, the whole machine is easy to fabricate and assemble, and the piezoelectric ceramic is difficult to be damaged and broken.