Objectives : the present study was designed to investigate children's motor skills and their neurological functions. Since children's primary behavioral response is of the motor type, and since motor skills start with reflexive activities and become more complex as the central nervous system develops and gradually relate to higher neurological centers, an investigation of children's motor development would provide insights into their neurological functioning. Method: 20 primary school boys, with mathematics learning disorder, were selected. Their neurological functioning were compared with those of 20 3^rd and 4^th grade normal school boys studying in Tehran using the Raven Progressive Matrix Test for children, the mathematics Learning Disorder Diagnostic Test and the Lincoln-Ozertsy Motor Development Test. The data were analyzed through correlation coefficients and t-test procedures. Findings: the findings demonstrated that general motor skills were more developed among normal students than those suffering from mathematics learning disorder. Furthermore, major and fine motor skills, motor coordination, motor speed and static balance were more developed in normal school children than in children with mathematics learning disorder students.