Based on the analysis of traditional technique of land use survey at county level, this paper presents a method of land use survey at county level based on high spatial resolution image.

在分析传统县级土地利用调查技术的基础上，提出基于高分辨率卫星影像的县级土地利用调查方法。

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The purpose of the paper is to explore techniques, methods and nowchart of land use investigation upgrading based on SPOT5 high-resolution satellite image.

结果表明：采用SPOT5高分辨率卫星影像进行土地利用更新调查，是切实可行的，能够较大提高调查工作效率、保证调查成果数据的精度和可靠性。

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Thus, some scholars use object-oriented information extraction technology to classify the remote sensing image, greatly increased the accuracy of high-resolution remote sensing image classification.

于是，有些学者将面向对象信息提取技术运用到遥感影像的分类中，大大提高了高分辨率遥感影像的分类精度。

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