The purpose of this paper was to conduct a kinematic analysis of the motor structure of climbing in children at early and preschool age. The objective was to identify possible deviations from the ideal structure of motion and from behavioral patterns during climbing while performing tasks. The participants in this research were children between 2,3 and 6,5 of age from the kindergarten „Kalimero“ in Brtonigla. The children that participated in the research were recorded performing 3 motor tasks that include climbing (climbing frame, slide, stairs) and the analysis was conducted based on those recordings. Content analysis method was used for video processing, basic descriptive parameters and percentages (%) were calculated, and Student's t-test was used to determine differences between certain variables for independent samples. The Kinovea software was used to conduct the kinematic analysis of this research and the following variables were measured: duration of ascent, duration of descent, duration of transition, total duration of the task, knee flexion angle, hip flexion angle and the use of arms. After comparing morphological characteristics of the children, the results showed that most participants have optimal development, in accordance with their age, without considerable deviations. Higher BMI negatively impacted success rate and velocity of performance of the motor task of climbing, so the children with higher BMI needed more time to complete motor tasks in their entirety or some parts of them. Apart from BMI, the success rate and velocity of completion of the motor task of climbing were influenced by the 'age' variable as well. Older children, on average, were faster at completing motor tasks compared to younger children, although in some tasks no significant deviations were noticed. After analyzing knee and hip flexion angles, the results showed a positive correlation between increasing both angles and the velocity of performing motor tasks. Given that there is a significant correlation between physical activity and motor knowledge, this research sets the foundations for further intervention and prevention strategies. These strategies include different educational programs for adults and a plethora of kinesiologic programs offered to children of early and preschool age in order to increase their levels of physical activity, to decrease the obesity rate and to put an end to the trend of sedentary lifestyle.