The main goal of this research was to establish the prevalence, form of manifestation, level and kind of motor skill disorders in three area of motor development functioning: neuromaturation, coordination and balance. The sample included 1165 children, between 6.5 and 11 years of age. The protocol was constructed and contained tests for the evaluation of neuromaturation, coordination and balance based on Levine tests [Levine, D. M. (1980). The child with learning disabilities. In P. A. Sheiner, "The practical management of the developmental disabled child." Toronto-London: C.V Mosby Company], Ozeretski's motoric test (1975) and ACADIA test (Atkinson, Johnston, & Lindsay, 1981). Extracted coordination disorders were noticed in 37.3%, disharmonic lateralization in 59.5%, balance disorders in 28.7%, and the malfunction of neuromaturation, in 38.9% of the total sample. The findings indicate a significant influence of the age of the pupils on the prevalence of symptoms of delaying in neuromaturation development, disbalance and dyscoordination, as well as the influence of the gender of the pupils on the appearance of delaying in neuromaturation.