Title: Differences in the development of fine (pincer grasp) and gross (independent walk) psychomotoric skills in hypertonic and hypotonic children treated at the Department of Physical medicine KBC Split. The aim of the study: To evaluate the differences in the development of fine (pincer grasp) and gross (independent walk) psychomotoric skills in hypertonic and hypotonic children treated at the Department of Physical medicine and rehabilitation at KBC Split during the period from January 1, 2016, to January 1, 2017. Subjects/Methods/ Procedures: During research, data from the medical documentation (health records) of children treated at the Department of Physical medicine of KBC Split in 2016 were used according to the Munich Functional Developmental Diagnostics. Used data were: gender of the child: boys n=69, girls n=71; the age of a child in days, diagnosis hypertonia n=79, diagnosis hypotonia n=61, examination date when fine and gross psychomotor skills were developed, and a number of physical therapy procedures until the time of their development. Results: The probability of development of fine motor skills of girls is in accordance with the norms of healthy children's standards, and is significantly higher than in boys, no matter if girls suffer from hypertonic or hypotonic disorders (OR = 1.49, 95% CI 0.59-3.76 ). Hypotonic children, both boys, and girls, are more likely to have their gross motor skills developed than hypertonic children and their development is in accordance with the norms of healthy children's standards (OR = 0.90, 95% CI = 0.44-1.87). Independent walk has developed in boys and girls of the same age, no matter if they were suffering from hypotonic or hypertonic disorders. This is attributed to the effects of the applied physical therapies. The number of physical procedures needed for the development of gross motor skills in hypotonic children (p = 0.757) and the development of fine psychomotor skills in children with hypotonia (p = 0.860) is not statistically significant. Conclusion: The results obtained from our research are consistent with the results of Woodard, Sinclar, Reinisch, and associates who noted small differences in the number of motor activities between girls and boys, although they were minimal during early childhood.⁵⁷´⁵⁸´⁵⁹ The motor development of boys and girls is very similar up until the fourth year of life, with the little advantage of a girls aged three years in a fine motor skills.