Abstract: In order to improve the efficiency of basic farmland delineation and monitoring and reduce the cost of manpower and resources, the author used Landsat-8 remote sensing data by pixel dichotomy to estimate crops vegetation coverage, and compared the results with Basic Farmland Agricultural Land Classification through quantitative analysis. The results showed that, vegetation coverage in the study area mainly belonged to medium level, and in most regions the vegetation coverage was from 30% to 50%, which was in consistent with the outside investigation in the same period. For the study area, vegetation coverage under medium level had reached its peak, the proportion of medium coverage also grew with the advance of agricultural land level. As for the less distributed high-coverage and low coverage areas, there was a trend of improving along with basic farmland level increasing and decreasing. This showed that remote sensing data could be used to estimate the growth of vegetation coverage for determination of the status of the plant and remote sensing technology was feasible to be applied to basic farmland planning and monitoring.