To increase the calibration frequency of Chinese optical remote sensing satellite sensor, a high-frequency calibration method based on domestic multisite was presented. And the in-flight high-frequency absolute radiometric calibration of GF-1 Wide Field of View (WFV) was conducted using this method. The theory of high-frequency calibration based on multisite was intruduced. The optimized selection principle of domestic calibration site was presented according to the parameters and characteristics of GF-1 WFV. And the temporal stability of site surface was analyzed. MODIS land and atmosphere products were used to instead of in-situ measurements to increase the amount of available calibration data. The validation of MODIS land product was conducted using in-site measurements. The high-frequency calibration of GF-1 WFV4 based on Chinese multisite was carried out, and the calibration coefficients were compared with the official calibration coefficients.The result shows that time series calibration coefficients of GF-1 WFV can be obtained using the multisite high-frequency calibration method. The calibration results of GF-1 WFV4 are in good agreement with the results of the official calibration. The relative differences of GF-1 WFV4 all bands calibration coefficients of the two methods are -0.49%, 1.33%, -1.01% and 3.86% respectively, which illustrates the availability of this method. The method can be used to improve the calibration frequency of Chinese remote sensing sensor, and timely track the changes of sensor.