The purpose of this study was to determine the relationship between movement motivation and motor development in infants with and without the experience of kindergarten. The population of this study included all parents with infant's boys with 10 to 11 month in Tehran. Among them, 150 infants with and 150 infants without the experience of kindergarten using the multi-stage random sampling the method was selected as the sample groups. Data collection tools included an infant movement motivation questionnaire and Peabody Developmental Motor Scale–Second Edition (PDMS-2), the data analysis was done using Pearson’s correlation coefficient, linear regression, and t-test in a significance level of p≤0.05. The results showed that there was a significant relationship (P=0/000), between movement motivation and motor development in infants with and without the experience of kindergarten. In the same context, a significant difference (P=0/000), was obtained in movement motivation and motor development between of infants with and without kindergarten experience and infants without the kindergarten experience, movement motivation, and motor development was higher. These results indicate that care of infants in kindergarten Centers may be due to the weakness of the programs and facilities have negative effects on of them movement motivation and motor development.