Autism spectrum disorders( ASD),a neurodevelopmental disorder characterized by social interaction and communication impairments,restricted interests,repetitive stereotyped behaviors,and motor impairment happening to certain children. Traditionally,motor impairment is not considered as one of the core deficits in ASD,but according to significantly increasing researches,infants' ability in motor skill development,which can offer clues for early detectable autism,is closely related to their social interactions and life skills,and untreated moto...