Abstract: Abstract: As an important component of the land consolidation, high standard farmland construction is the important means to protect the quantity, quality and ecological environment of cultivated land, and its target not only lies in the increase of cultivated land's quantity, but also the improvement of cultivated land's quality, agricultural production conditions and ecosystem environments. Through this paper we tried to explore the method of cultivated land evaluation and construction zoning to facilitate the process of decision and implementation for high standard farmland construction. The land comprehensive improvement project area in Quzhou County was taken as a case study. The whole process of the study was made up of 3 steps: 1) Establishing the evaluation model of cultivated land quality uniformity based on regional optimum cultivated land quality, and constructing the uniformity evaluation index system of cultivated land quality from the aspects of soil quality, engineering quality, space quality, ecological environment quality and aesthetic quality according to the new concept of cultivated land quality; 2) calculating the cultivated land quality uniformity through grading indicators, assigning score and weighting sum; 3) carrying out high standard farmland construction time sequence partition according to the principle of easy first and difficult afterwards through analyzing regional cultivated land quality difference and obstacle factor index restriction. The results showed that the value of farmland quality uniformity of the administrative villages in the project area was between 7.03 and 22.40, and there was obvious difference between various administrative villages. Through the natural breaks method, the quality uniformity of cultivated land in the project area was divided into 3 levels. In detail, the high-level area included 8 administrative villages, and the cultivated area accounted for 20.98% of the total area of cultivated land in the project area; the plots of cultivated land in each administrative village were of high quality, and at the same time similar with the optimal quality level in the area. The middle-level area included 21 administrative villages and the low-level included 17, the cultivated area of which accounted for 48.59% and 30.44% of the total cultivated land area respectively. The plots of cultivated land were of medium and poor quality respectively, and the difference was comparatively large compared to the optimal quality level in the area. The most restrictive factors in the project area were the indicators with medium and low transformation difficulty, including soil organic matter content, forest density, field regularity and scale of field, and there were also the indicators with high transformation difficulty in some areas, such as sectional configuration. The project area was divided into 4 time sequence partitions including the major construction area, the secondary construction area, the general construction area and the conditional construction area, and the construction difficulty of these 4 areas was from easy to difficult; the cultivated land area of each subarea was 710.11, 2 199.04, 975.47 and 1 101.07 hm2, accounting for 14.24%, 44.11%, 19.57% and 22.08% of the total project area respectively. The evaluation model and index system can satisfy the requirements for the evaluation of the farmland quality and the diagnosis of obstacle factors to facilitate the subsequent construction decision. The study can be a reference for the practice of high standard farmland construction, and provide new ideas and methods for related research.