Currently most children with cancer can be cured due to tremendous progress in the treatment methods. A child truly cured is only the patient who is a long-time survivor from a medical point of view as well as with fill psychosocial adjustment. This is the reason for many efforts which are undertaken to establish the principles of psychosocial support of children with neoplastic disease. Also in Poland such activities have started. This multicentre study was performed on the optimalisation of biomedical and psychosocial support of cancer children and their parents based on the recommendations of SIOP Working Committee on Psychosocial Issues in Paediatric Oncology adjusted to Polish conditions. The analysis showed the important role of introducing the principles of biomedical and psychosocial support. The implemented unified model of giving information about cancer to the children tells us who of them needs the additional psychosocial interventions. There is also a neccessity to improve the communication skills of the paediatricians.