The rights of children are defined by the UN Convention on the Rights of the Child, which Croatia accepted in 1991.According to UNESCO data, as many as 10% of children are born with some disability or they are acquired in an early childhood age. A child with developmental disabilities is a child who for physical, sensory, communicative, speech-language or intellectual difficulties need additional support for learning and development. A person with a disability is a person with long-term physical, mental, intellectual or sensory damage, which can prevent its full and effective participation in society. Children with developmental disabilities as well as disabilities, we mean each child that is different of an average child in a particular social and cultural community. All children are born with the freedoms and rights that belong to all human beings, so also children who have some kind of damage or disability. Through this paper, we will explain more precisely what are all the children with developmental disabilities and disabilities, and its distribution. Still studying the situation in Croatia, I think we should ask how much in life we are contributing to this and start investing and talking about the children who need it the most, and to do everything for them to have also life with full rights and life without discrimination and division