This research aims to identify the influence of swiss ball crunches on the technical performance of swallow skills on rings for under 14 years-old gymnastics team. The researcher used the experimental method for pre-post measurement of one group due to its suitability to the nature of the research. The research sample was chosen intentionally from gymnasts under (14) years-old in the following sports clubs: Al-Ahly Club and Tala'ea El-Geish Club, who are registered with the Egyptian Gymnastics Federation in the 2022/2023 training season. The basic research sample was (10) gymnasts, a number of other (10) gymnasts were chosen randomly as a sample for the exploratory study, representative of the original community and from outside the basic research sample, in order to select appropriate Swiss ball crunches related to swallow skills on rings understudy and codifying the training load for these crunches. The most important results were as follows: The percentage of improvement in the muscular strength variables understudy ranged between (18.8% - 39.2%). and the highest percentage of improvement was for (muscular power of the abdominal muscles) by (39.2%), while the percentage of improvement for the technical variables ranged between (20.1% - 24.3%), and that the highest percentage of improvement was for the Inverted Swallow skill on rings, which reached (24.3%). The researcher recommends using Swiss ball crunches to develop muscular strength and technical performance of swallow skills on rings for under 14 years-old gymnastics team.