Developing basic motor skills in early childhood is crucial to a child’s physical, cognitive and social development. The purpose of this research study was to assess and classify fundamental motor skills among 4–5-year-old preschool children, to identify the key trends and features of these skills, and to determine the effectiveness of specific general motor fitness programs. Thirty-five children were evaluated by means of several standardized motor skill tests and statistical modelling. They found that fundamental movement skills (FMS) fall into three domains: locomotor (e.g., walking, running, jumping, etc.), non-locomotor (flexibility, balance, weight transfer, etc.), and manipulative (throwing, kicking, etc.), with more variability in results in the manipulative category since these skills need to be taught, while the locomotor abilities develop naturally. The results indicated that engagement in structured activity was strongly related to improved motor performance, highlighting the need for prescribed physical activity within preschool curriculums. Moreover, the present study highlights the impact of motion-tracking in the optimization of assessment and the closing of developmental gaps. The polished motor skill benchmarks and position recommendations that were found also are significant for early childhood education because they will provide concrete directions for measuring motor skills and maximizing development for educators and parents at specific developmental stages. Research should be focused on longitudinal studies and analysing movement using AI-based methods in order to refine measures of skill acquisition.