Abstract: The pointwise continuous energy cross section physics module of Monte Carlo particle transport code JMCT with independent intellectual property right was introduced in this paper. There are parameter-class and collision-class in this module. The parameter-class is designed to store static cross section data hierarchically and its structure is based on physical significance of corresponding data. The collision-class calculates the cross section at current particle energy by interpolation and samples strictly according to physical process. The benchmark model TINKERTOY was simulated by MCNP and JMCT, and the results confirm the correctness of this module.