In this paper，the Chinese and Russian codes are compared and analyzed from aspects such as concrete materials，prestressed reinforcement materials，limit coefficients of control stress for prestressing，and prestress loss calculation. Taking a post-tensioned hollow slab as an example，we can draw the following conclusions：1）The Chinese and Russian codes are consistent in the classification system of concrete and reinforcement materials，the consideration of influencing factors in the prestress loss，and the calculation of some prestress loss values，while the two differ in the subdivision rules，material range，and classification quantity consideration. 2）There are differences between the two in the calculation of individual prestress loss，and in general，the calculation results are greater under the Chinese code.