The invention provides a scheme of integrating spectrum detection data. A spectrum detection terminal is arranged in each frequency allocation region of a target frequency band, information of frequency within the range and belonging to the target frequency band is detected through the spectrum detection terminals, frequency occupation information is obtained, a frequency management platform is further used for comprehensively analyzing the frequency occupation information collected by all the spectrum detection terminals to obtain the frequency occupation evaluating information of the target frequency band in the region range, the measurement accuracy of the occupation degree of the target frequency band in the region is improved, furthermore, the frequency occupation trend information of the target frequency band within appointed time frame can be predicted according to the frequency occupation evaluating information, and the use ratio of spectrum resources is increased.