Abstract: This paper presents some modeling methods for CDMA network planning applica-tions. Linear equations are used for modeling CDMA multi-cell networks and iterative methods are adopted for solving the equations. The simulation results based on these models are pre-sented in this paper. The analysis shows that the results are fairly accurate, so the models can be used in real networks perfectly. Whats more, the methods are easy to be implemented on computer platforms. Thus, these modeling methods can be used as the core algorithms of planning softwares, perspectively.