本文主要介绍如何利用ＴＭ图像和计算机模式识别技术，对我国南方一个地类多、地块小而分布零散的岩溶山区的土地利用现状进行调查的方法和结果，并简介了提高计算机模式识别精度的几个措施。通过工作，建立了相应的土地管理信息系统，并对调查结果进行了对比验证，证明调查精度能满足要求。 This paper mainly introduces how to use TM image and computer pattern recognition technology to investigate the methods and results of land use status of a karst mountainous area with more landforms and small and scattered patches in the south of China, and briefly introduces the methods and results of improving the accuracy of computer pattern recognition A few measures. Through the work, the corresponding land management information system has been set up, and the verification of the survey results has been made, which proves that the survey accuracy can meet the requirements.