Developmental coordination disorder is usually associated with movement and cognitive disorders in affected children. Based on, the aim of the current research was to investigate the effect of practicing rhythmic movements with music on the motor and academic performance of children with DCD. The research method was semi-experimental with a pre-post-test design with a control group. 30 female students aged 7-10 years old with DCD in public schools of Miandorud city in the year 2021-2022 were selected in a targeted manner using "Parental DCD Questionnaire", "Teachers' Motion Observation List" and clinical observation and after pre-test, the subjects were randomly divided into experimental and control groups. The training protocol included 8 weeks of rhythmic movements with music, which were performed in two sessions a week for 45 minutes only in the experimental group. Both groups were evaluated with MABC-2 tests and academic performance questionnaire in order to measure motor and academic performances in the two stages of pre-test and post-test. Generalized estimating equations and analysis of covariance were used to analyze the data. The results showed that the effect of rhythmic movements with music on the academic performance of children with DCD was significant (P<0.001, df=1,27, F=108.501). In addition, the effect of the intervention on motor performance total score and in three subtests of manual dexterity, balance and aiming and catching was significant (P < 0.05). It seems that intervention programs based on rhythmic movements with music in a group can improve the motor and academic performance of children with DCD.