Motor impairments, such as unusual posture, are a critical aspect of autism spectrum disorder (ASD) that affects individuals of all ages and influences how the disorder manifests. This review examines the prevalence and consequences of motor impairments in ASD, exploring their relationship with key characteristics, potential neurobiological factors, and implications for intervention and future research. By reviewing recent studies, literature reviews, and theoretical perspectives, this review reveals the complex interplay between motor abilities, sensory processing, social cognition, and overall development in individuals with ASD. The findings show that motor impairments are not just co-occurring features but are integral to the condition, affecting the severity of social communication difficulties, restricted and repetitive behaviors, and adaptive functioning. This review highlights the need for a shift in ASD research and intervention, moving away from isolated approaches and embracing a more comprehensive perspective that considers the significant impact of motor impairments on individuals with ASD.