Physical education for kids is to help develop their fundamental motor skills and refine their movement. Physical education has evolved from simple drills to various activities to improve the physical well-being of individuals and communities. The purpose of the study was to assess the postural assessment of locomotor skills among elementary pupils attending Mindanao State University Integrated Laboratory School (ILS), Marawi City, Lanao Del Sur, the Philippines. This was a descriptive study. Data was collected from 247 pupils in grades 1 to 3 were used for the study using convenient and stratified sampling techniques. The instrument used for this study was an erect line apparatus drawn in cloth with string hung in front and a digital camera. Data collected was analyzed using descriptive statistics of frequencies, percentages, mean scores, and Pearson correlation moment. The study found that most of the pupils were between the ages of 8 years (31.98%), males 131 (53.34%), the majority had good postural assessment (239, 96.76%) and had a slight marked deviation in locomotor skill performance in walking skill 134 (54.25%). There is no significant association with profile of the respondents and postural assessment. There was no relationship between the profile along age, gender, BMI, and locomotor skill performance. However, it was discovered that postural assessment and locomotor skill performance has a highly significant relationship. We must hire physical education teachers to kindergartens, primary, and elementary schools to teach locomotor skills effectively to pupils. Also, the school administrators should support the physical education teachers to provide the necessary programs to enhance pupils' posture and locomotor activities.