Background: Children with a motor development delay need to be identified early in order to initiate appropriate therapies. In the first step of a sequential diagnostic strategy, a screening should be used to shorten this process. Therefore, the mobility screening MobiScreen 4-6 is tried to be validated for children from 7 years and older. Methods: A total of 90 children, of whom 60 boys and 30 girls at a mean age of 7.33 ± .45 years, from two German primary schools participated. All underwent the MobiScreen 4-6. Internal consistency, construct validity, and discriminant ability were evaluated.