Through Table 3, we can calculate the three principal components F1 in each county (district). One F3. In the score. If the score of a principal component of the county (city) is positive, it means that it is above the average level; otherwise, it means that it is below the average level. In order to comprehensively evaluate the influence of each principal component on the spatial distribution of employment floating population, the comprehensive score of principal component is defined as F = O. 226 * F1 + O. 223 * F2 + 0.215 * F3, get the score and ranking of the comprehensive principal component F of each county (district). The larger the value, the stronger the attractiveness to the floating migrants, and the weaker the converse.