Equality under the law is a basic general principle of human rights protection and is indispensable for the exercise of other human rights. It is reflected in a lot of international and regional treaties as the Universal Declaration of Human Rights, the International Covenant on Civil and Political Rights etc. The most important step in assuring the right to legal capacity for persons with disability was the adoption of the Convention on the Rights of Persons with Disabilities. Becoming a part of this Convention, our country should review the laws allowing for guardianship and trusteeship, and should take action to develop laws and policies to replace regimes of substitute decision-making by supported decision-making, which respects the person’s autonomy, will and preferences.