The invention provides a 
wind power generation device convenient to maintain for 
new energy development. The 
wind power generation device comprises a supporting 
tower, a 
tower door, 
climbing stairs, asupporting pedal, a wind generating set 
assembly, an adsorbable clamped maintenance door structure, a slidable climbing maintenance frame structure, an adjustable shielding frame structure, an adjustable warning power generating seat structure, a connecting ring, a rotary blade, a protection cap, an overhauling supporting plate, a protection rod, supporting rods, an L-shaped supporting frame, a base and a storage and conversion 
assembly. The 
tower door is connected to the lower portion of the left side of the supporting tower through hinges. According to the 
wind power generation device, dueto the fact that a U-shaped frame, a rotary plate, a sealing 
gasket, a clamping plate, an L-shaped 
hooking plate, a locking nut and the wind generating set 
assembly are arranged, the locking nut can be loosened in the working process, then the left side of the L-shaped 
hooking plate is rotated, the L-shaped 
hooking plate is separated from the clamping plate, then the rotary plate is opened, and equipment in the wind generating set assembly can be maintained and overhauled conveniently.