In this study, it was aimed to assess the effects of core training on the vertical jump strength and some motor characteristics of 14-16 aged female volleyball players. Thirty-four female athletes playing volleyball in Van province participated in the study voluntarily. The average age of volleyball players is 15.47, the weight average is 53.66 kg and the average height is 164.29 cm. The athletes participating in the study were randomly divided into two groups as control groups (n = 17) and experimental groups (n = 17). Control group joined only the volleyball training. Experimental group participated in the 10-week, 3-days-a-week core training in addition to the volleyball training. Measurements were taken before and after the study. Intra-group and inter-group, pre-test, post-test values were calculated using SPSS package program. The students' t-test was used to compare pre-training and post-training tests of control group and experimental groups. The paired sample (dependent sample) t-test was used to compare the first and last tests of both groups. Vertical jumping, upper extremity strength, lower extremity strength, strength of the trunk muscles were found to be improved and body fat percentages were found to be decreased in the experimental group. As a result, it can be said that a 10 week core training improved jumping strength and core strength.