土地作为城市发展的最基本要素，不仅是社会活动的载体，也是国家的一笔巨大财富。随着我国城镇化建设的加快和保证18亿亩耕地红线政策的落实，城市土地作为不可再生资源，日益成为城市建设的稀缺资源，土地价格日益攀升。基准地价作为衡量城市土地的基本经济数据，不仅促进了土地资源的合理配置，发挥出土地最大的社会与经济效益，同时为征收土地税费提供了依据；基准地价的确立也不断完善我国地价体系，促进了我国国民经济的核算统计体系的发展。 本文从土地定级、土地估价的基本方法和基准地价计算模型入手，综合运用地理信息技术、土地经济学、统计学等原理与方法，按照土地定级的技术路线和土地估价的工作程序，详细研究了白银区的地价体系，取得以下成果： （1）确定白银区土地定级影响因素，建立了定级因素的指标体系，结合当地专家意见和白银区实际，确定了商业、住宅、工业三种土地类型定级因素权重指标。 （2）在大量的社会调查和数据收集基础上，建立土地定级数据库；采用多因素综合评定法，以定级单元综合分划分土地级别，最终得到白银区商业、住宅、工业三种土地类型土地级别范围。 （3）在基准地价评估的基本理论、原理的指导下，在大量获取白银区土地市场交易 资料的基础上，计算、修正样点的地价，建立样点地价数据库；建立样点地价与单元综合分的数学模型，并运用方差分析法进行理论验证，最终得到白银区商业、住宅、工业三种土地类型不同级别的基准地价。 本次研究的白银区土地级别与基准地价并不能动态的显示土地市场变化。而城市土地市场是动态的，所以需要建立动态的地价体系才能适应市场的需求，准确反映土地实势地价，这也是笔者今后研究的方向。

Land as the most basic elements of urban development, it is not only the carrier of social activities, but also a huge wealth. With the speeding up of urbanization construction in our country and guaranteeing the red line of 1.8 billion mu of arable land policy, urban land as a non-renewable resources are turning into the scarce resources in the construction of the urban construction , land prices are still rising. Benchmark land price as a measure of the urban land basic economic data, not only promote the rational allocation of land resources and play out the land of the biggest social and economic benefits, but also provide the basis for land taxes and fees. The establishment of benchmark land price is also constantly improving the land price system in our country, promoting our country's accounting statistics system for the development of national economy. This study integrated using of principles and methods of geographic information technology land economics, statistics and so on, according to the technical route of land grading and land valuation procedures, studied the land price system of Baiyin in detail, and achieved the following details. (1)This study determined land grading factors of Baiyin district, established the index system of grading factors, combined with the actual local expertise and silver area, determined the commercial, residential, industrial three types of land grading factors weight indicators. (2) On the basis of a large number of social investigation and data collection, this paper established database of land grading; Multi-factor comprehensive evaluation method and overall unit points were used to divide land levels, finally got the Baiyin commercial, residential and industrial land type level range. (3)Under the guidance of theory and principle of land evaluation, on the basis of Baiyin land market transaction datas, this paper calculated and revised sample land price, established database of sample land price, set up mathematical model of sample land price and unit integrated points, and used Variance analysis to verify the model. Finally get Baiyin’s land standard price of industry, residential, industrial three different land types at different levels. The study of Bainyin land grading and standard land price could not dynamically display the change of land market. but urban land market is dynamic, so it need to set up dynamic land price system to adapt to the demand of market and accurately reflect the real potential of land price, it’s also the future research direction of author.