As the high precision of the surveying and mapping property content,property mapping measures the area size and ownership of commodity houses via the sophisticated instrument and scientific mapping technology.This paper briefly introduces the content of the real estate surveying and mapping, the method of the allocation and discusses the reasons that affect the quality of property mapping.%房产测绘属于高精度的产权测绘内容，必须采用精密的测绘仪器和科学的测绘技术，对商品房屋的面积大小、权属状况等进行专业测量。文章简要介绍了有关房产测绘的基本内容、特殊分摊方法的处理，并对影响房产测绘质量的原因进行了探讨。
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