This article was compiled by describing the various orthoses applications for upper and lower extremities and trunk control in patient with cerebral palsy, their indications and contra-indications, and the advantages and disadvantages of one over the other. The importance of the evaluation of the orthoses for determining the special purpose of the brace is emphasized, and the criteria for selecting the correct orthosis for the purpose are documented. The acquisition of postural control and correct movement patterns form the basis of the treatment of cerebral palsy. Children use these basics to reach something they wish to hold, and maintain their upright position. Walking ability is acquired by the basics developed to control the center of gravity in vertical position. These are repeated frequently, learned, and adapted to the functions that have been acquired before walking. Orthotics help to achieve of these goals. If the functional activities that are desired to be achieved are well determined by defining specific and correct targets for the patient, the effectiveness of the orthosis on the function can be evaluated, and the necessary changes are decided more easily.