Predominantly, childhood provides a window of opportunity for the promotion and development of social maturation and fundamental movement skills. The purpose of the study was to examine the effect of active play on the motor proficiency and social maturity of children. Thirty participants (age range: seven to nine years old) were randomly assigned to either an active play (n = 15) or a control (n = 15) groups. The intervention was 60 min/day, three days/week for four weeks for the active play group, while the control group did not participate in a specific training programme. All outcome variables (motor proficiency and social maturity) were measured twice (before and after the intervention). The significant results revealed that at the end of the intervention, the active play group showed improvement regarding outcome variables and had higher social maturity and motor proficiency, compared to the control group (p < 0.0001).