This case study will present the effectivnes of dance movement therapy on the development of communication, reduction of self-aggressive behaviour and improving eye contact in children with autism spectrum disorder (ASD). ASD is a very complex neurodevelopmental disorder that covers all aspects of child's personality (communication, motor skills, behavior and learning), starting at early childhood usualy in the first three years and lasts for a lifetime. People with autism have trouble understanding what other people think and feel. This makes it hard for them to express themselves, either with words or through gestures, facial expressions, and touch. The number of children diagnosed with ASD is increasing 1 in 150 newborns, and the fact that every 21 minutes in the world a baby is born who will be diagnosed with some of the autism spectrum disorders. The American Association of Dance Therapists - ADTA defines dance therapy as the application of movement and dance in the creative process with the aim of stimulating the emotional, cognitive, social and physical integration of the individual. Because dance movement therapy is based on a non-verbal communication it is a successful therapeutic modality for children in autism spectrum disorder whose behavior is non verbal, therefore they can express themselves easely on a non verbal level through dance and movement. The study was conducted in the form of a case study with an autistic girl after attending 30 sessions leaded by a dance movement therapy student. An autistic girl is completely non-verbal with a pronounced autoaggression. Body movements are predominantly with the hands and always in the same place in space. Although she makes eye contact, in sessions she is made only through mirrors. The sessions were held once a week with various movement and dance therapy techniques. The results of this study showed the positive effects of dance movement therapy on the development of communication and the reduction of autoaggression in a girl with autism spectrum disorder. Eye contact was made without the use of a mirror. There has also been a slight shift in verbal communication. Autoaggression has been reduced but is still present. Full body mobility was achieved and the girl became aware of the sense of space in which the sessions took place.