The utility model discloses a wind power generation components of a whole that can function independently wheel hub, it is including the wheel hub components of a whole that can function independently, three it is whole that a wheel hub is spliced into in the wheel hub components of a whole that can function independently, and every wheel hub components of a whole that can function independently both ends is equipped with the semicircular cylinder end respectively, and the contained angle of two semicircular cylinder ends in every wheel hub components of a whole that can function independentlyis 120, and the semicircular cylinder end matching of two adjacent wheel hub components of a whole that can function independentlys connects into a drum. The utility model has the advantages of: adopt the mode of components of a whole that can function independently, reduced the technology degree of difficulty of stick to reduced wheel hub's rejection rate, the transportation is convenient simultaneously, wheel hub components of a whole that can function independently department is stretched out the semicircular cylinder end matching and is connect into drum replacement wind turbine blade blade root section, has reduced blade blade root infuse with's quality risk, be furnished with the strengthening rib between the semicircular cylinder end of wheel hub components of a whole that can function independently, have better structural strength.