Comparisons between the met hods of simulated crop production and synthetic land quality, for agroland economic gradation, and between their results are made, on the basis of the case study in Farm 148 of Xinjiang Autonomous Region.Results showed that: (1) the procedures of the two methods were almost the same, with results being fairly accurate and highly identical at a local-level; (2) the results of the method of simulated crop production were highly comparable, but its approach was very complicated; (3) the approach of the synthetic land quality method was simple and practicable, whereas the resuts between different areas were less comparable; and (4) with the combination of the two methods, it is easy to set up indexes of agroland economic gradation, comparable with each other and adoptable into the gradation network for the whole country, could be founded.