Abstract: The construction of high-standard basic farmland is an important grasp to consolidate the agricultural foundation and ensure national food security. Taking Nan’an District of Chongqing as the research object, this paper selects 12 indicators from three aspects of basic geo-power, utilization conditions and location conditions, constructs a comprehensive evaluation system of high-standard basic farmland construction, introduces the method of entropy weight and obstacle degree model to measure the construction potential and difficulty coefficient of each evaluation unit, and finally uses the administrative village as the evaluation unit to couple the two evaluation results, and puts forward the Nan’an District High standard time sequence of basic farmland construction. The results showed that the area of cultivated land with high standard basic farmland conditions in Nan’an area was about 76.6 hm², accounting for 11% of the total permanent basic farmland. The remaining 624.19 hm² cultivated land could be gradually built into high standard basic farmland through land renovation. Spatially, the regions with high construction potential are mainly concentrated in Guangyang Town in the northeast of China, and the construction difficulty level shows the distribution law of “high in the South and low in the north”. According to the construction principle of “easy in the first place” and “difficult in the second place”, the construction time sequence also needs to follow the rule of “from north to south” to carry out the renovation project in turn. The research results can provide reference for the implementation of high standard basic farmland planning in Nan’an area.