According to the website of primary education, it is known that the key primary schools in Yubei District are: Chongqing Yubei Experimental Primary School, Chongqing Donghe Spring Experimental School, Chongqing Yubei Hanyu Road Primary School, Chongqing Yubei Longxi Primary School, Chongqing Xinpaifang Primary School, Chongqing Xingguang School, Yubei Bashu Primary School, Chongqing Yubei Shuanghu Primary School, and there is no Chongqing Airport Jiayuan Primary School, so it can be concluded that Airport Jiayuan Primary School is not a key primary school.