Urban renewal is the objective need of the new normal of China's urbanization development in the new era. The study on the distribution pattern of traditional enterprise community is helpful for better comprehensive understanding and scientific optimization of urban internal space. In this paper, main city zone of Xi'an, which consists of 6 districts and 54 subdistricts, is chosen as the study area. Further, based on point of interest (POI) and field survey data, distribution pattern and formation mechanism of urban enterprise communities are probed by spatial autocorrelation analysis and nuclear density analysis methods. The results show that firstly, enterprise communities are abundant in Lianhu, Xincheng, Beilin and Yanta districts, and the number is the largest in Lianhu district, where it is as many as 238. At the same time, enterprise communities mainly concentrate in subdistricts of Taoyuanlu, Tumen, Dianzicheng, Zhangjiacun, Hujiamiao, Hongmiaopo, Changlezhonglu, Hansenzhai, Fangzhicheng, Zaoyuan, and so on, and the number of communities in Taoyuanlu subdistrict reaches 70. The subdistricts with dense enterprise communities are mainly located in the near central area around the Bell Tower. Secondly, enterprise communities are mostly distributed between Ming city wall and the third ring road, which is about two to eight kilometers away from the Bell Tower and accounts for 78.59% of the total. At the same time, the community spreads east-west direction along the Longhai Railway. It concentrates in the width of 8 kilometers away from south side of the railroad, and presents the band and cluster distribution of spatial 'large dispersion and small aggregation'. It is distributed in the width of 2 kilometers away from north side of the railroad, and takes on the characteristics of exponential decrease outward. Thirdly, the Moran's I index for the community is 0.27, which indicates that the positive spatial autocorrelation is very significant. That is to say, the subdistricts with more communities tend to cluster in space, and the subdistricts with less community are adjacent. Fourthly, hotspot subdistricts of enterprise communities consist of Tumen, Zaoyuan and Taoyuanlu of Lianhu district, Changlezhonglu and Hansenzhai of Xincheng district, Fangzhicheng of Baqiao district, and Xiaozhai of Yanta district; cold spots chiefly concentrate in the north of main urban area and the central urban area, and Weiyang Lake subdistrict in Weiyang district, Beiyuanmen subdistrict in Lianhu district, and Jiefangmen, Xiyi Road, Zhongshanmen subdistricts in Xincheng district are particularly prominent. In addition, the analysis of kernel density shows that the spatial structure of enterprise community is also characterized by large scale dispersion and small scale agglomeration, and the subdistricts with high distribution density are basically consistent with the results of hotspot analysis. Finally, it should be said that the distribution pattern of traditional enterprise community is the result of historical and social development, and has the characteristics of times and places. It is jointly affected by many factors such as policy making, traffic routes, urban pattern, planning and design, enterprise location, natural conditions, urbanization, and marketization.