This research aims to identify the effect of eight weeks of TRX suspension training on muscular power and performance level of some kip skills in gymnastics. The researcher used the experimental design for pre-post measurement of one group to suit the nature of the research. The research sample was chosen Intentionally from gymnastics players listed in the Saudi Gymnastics Federation, from different clubs, and the basic research sample included (10) players, while the exploratory study was conducted on a sample of players representing the original community, from outside the main research sample, their number was (10) players who were chosen randomly with the aim of selecting the appropriate TRX suspension exercises and codifying it's training loads. the most important results were as follows: The percentage of improvement for the physical variables ranged between (10.5%, 27.7%), and the highest percentage of improvement was for the (Abs muscular power) by (27.7%), and the lowest percentage of improvement was for (arms muscular power) by (10.5%), and the percentage of improvement of the rest elements ranged between them, while the percentage of improvement of technical variables ranged between (15.8%, 21.5%), and the highest percentage of improvement was for (kip to support) on rings apparatus by (21.5%), and the lowest percentage of improvement was for (glide kip) on parallel bars apparatus by (15.8%), The researcher recommends using TRX suspension training to develop muscular power and performance level of some kip skills in gymnastics.