This study examined how the family capital of upper secondary school students impacted on their geospatial thinking skills and explored the mediating effect of their academic achievement in geography. A total of 1,018 upper secondary school students participated. The results of our mediation analysis conducted using the PROCESS modeling tool revealed that family capital has a direct predictive effect on students' geospatial thinking and an indirect predictive effect via their academic achievement in geography. Therefore, this paper aims to redistribute family capital, so as to effectively apply it to the cultivation of students' geographic academic achievement and geographic spatial thinking ability.