The research was conducted to determine the metric characteristics of the test for assessing preschool children’s coordination in sports gymnastics. On a sample of 28 children aged between five and six years with at least one year of experience in sports gymnastics, 8 standardized tests were applied to assess the motor abilities of children, and one test on the gymnastics trampoline. The metric characteristics of the test were calculated in the programming system “Statistica 5.0” and supplemented with the programs “RTT.stb” and “RTT-KON.stb,” which Dizdar (2001, based on Momirović et al. 1999) wrote and implemented in the programming language for multivariate data analysis “STATISTICA BASIC.” The results showed good metric characteristics of the test on the trampoline, Reliability RTT = 0.963; Alpha = 0.963; Lamda6 = .950; Rho = 0.903; MSA = 0.99; AVR = 0.899, and Hom = 0.98. However, it is necessary to increase the number of tests and subjects in order to determine the factor validity of the measuring instrument so that the test can be applied with certainty in the selection of gymnasts.