[Objective] To analyze and evaluate the status of land remediation performance and potential grading, we aim to determine the basis and standard of land remediation input priority.[Methods] Using the data envelopment analysis model (DEA), the performance of 36 land remediation projects implemented in Huachi County of Gansu Province was evaluated. By comparing the ecological potential, quantity potential and the quality potential of different townships (towns), the input priority of the land remediation was determined.[Results] ① The technical, scale and comprehensive efficiency of land remediation in Huachi County was relatively high, which was 0.984, 0.984 and 0.969, respectively, and there were no obvious spatial differences among different townships (towns). ② There were large differences among the quantitative potential, the quality potential and the ecological potential of land remediation. ③ The county could be divided into 2 priority input areas, 5 secondary priority input areas, 3 general input areas and 5 tightening input areas.[Conclusion] It is an ideal method to combine the spatial difference and potential of the performance of land remediation to determine the input priority.