The research aims to study the effect French Contrast Method on vertical stiffness, some specific physical qualities and performance level of the skill of jumping with rotation for kata players in karate, The researchers use experimental methodology with two groups design (experimental and control groups) and pre-post measurements, The research sample was chosen in Purposive method, (12) physical education students (karate) were divided as follows (6) students for French Contrast Method group, (6) students for control group, The researchers apply the training program of French Contrast Method (8 weeks by three training units per week) experimental group, the results of this study were French Contrast Method training has a positive effect on developing vertical stiffness, some specific physical qualities and performance level of the skill of jumping with rotation for kata players in karate, The researchers recommend to use French Contrast Method training on developing vertical stiffness, physical and skill level of athletes in various sports activities and for different age groups during different seasons., In addition to directing the results of this study to karate coaches to be able to benefit from its results.