The current research aimed to identify the effect of diving training programs on some physiological variables of divers, using an experimental approach on a sample selected purposively from divers in Sharm El-Sheikh city, registered with the Egyptian Diving Federation for the training season (2023-2024), comprising 15 divers. The researcher applied the proposed program to the research sample for a period of 8 weeks. The most important findings of the study are as follows: There were statistically significant differences between pre-dive and post-dive measurements at a significance level of 0.05 for the experimental group (before diving) in all physiological variables. There were percentages of change between pre-dive and post-dive measurements for the experimental group before diving in all physiological tests, ranging from a high value to a low value. There were no significant differences between pre-dive and post-dive measurements for the experimental group after diving in some physiological variables, attributed to the training program. There were weak percentages of change in all physiological tests under study. Based on these results, it can be concluded that the training program significantly affected the physiological variables of the divers, which could contribute to improving their performance and health during and after diving.