With the development of growing number of China's mobile phone users and mobile Internet, intelligent transportation has become an effective way to solve the traffic problems. Many studies based on GPS data analysis are available. However, high costs lead to insufficient number of samples, the small number of studies based on call detail record (CDR) data analysis only apply a small range of short data sample. The study covers 27604 base stations in Beijing's Sixth Ring Road, collecting millions of data for research. By analyzing the location update of mobile communication network and mechanism of data and targeting, 75 zones are defined based on land use categories. The case study demonstrates CDR data for traffic characteristics analysis were practical. Travel distance consistent with the law of power law of Traffic zone. For different traffic zones (working or residential) travel mode choice, and improve the traffic situation provides a theoretical basis.