The invention discloses a method for establishing harmonic model of household electrical appliance load based on measured data, which comprises the following steps of acquiring measured voltage and current data of household electrical appliance load; performing Fourier analysis on the measured data to obtain the phasor values of each harmonic of voltage and current; obtaining the phasor values ofeach harmonic of voltage and current; establishing the harmonic model of cross frequency admittance matrix of household electrical appliance load; based on the generalized linear complex biased leastsquare method, calculating the parameters of the cross frequency admittance matrix model, and obtaining the cross frequency admittance harmonic model of household appliances by using the obtained voltage and current harmonic phasors as inputs. The method has the advantages of accuracy, rapidity, simplicity and practicability on the basis of no need to know the internal circuit structure and parameters of the household load, and has great significance for ensuring the accurate analysis and evaluation of the harmonic generation situation of the distribution network.