四川省集地震灾区、革命老区、民族地区(简称“三区”)为一体。“5·12”汶川大地震给四川带来巨大损失,按中央要求,三年重建任务两年完成,建设任务繁重;四川革命老区有2441.3万人口,占全省总人口数的22%,其分布面积占全省总面积的28.6%;四川也是民族大省,有53个少数民族,少数民族人口415万 Sichuan Province integrates earthquake-stricken areas, old revolutionary areas, and ethnic areas (abbreviated as “three areas”). The “5.12” Wenchuan earthquake caused huge losses in Sichuan. According to the Central Government’s requirements, the three-year reconstruction task was completed in two years and the construction tasks were arduous; Sichuan’s old revolutionary base had 24.431 million people, accounting for 22% of the total population of the province. The area of ​​its distribution accounts for 28.6% of the total area of ​​the province; Sichuan is also a large national minority with 53 ethnic minorities and a population of 4.15 million.