This study investigates the relationship between sensory processing patterns and behavioral patterns in children. The population consisted of all children in Tehran city. Participation included 229 school and 155 preschool children. We collected data using the Sensory Profile School Companion and Conners Teacher Rating Scale. Results showed that 'conduct,' 'inattentive/passive,' and 'hyperactivity' behavior patterns from the CTRS were significantly correlated with registration, seeking, sensitivity and avoiding from the SPSC in preschool and elementary school children (p < 0.001). Because of scoring, this means that behavior patterns were more prevalent when children had more frequent sensory processing patterns as well. This relationship should be considered when children are referred to occupational therapy for sensory processing problems or behavioral challenges.