This paper analyzes four important issues related to national renewable energy policies including strategies for energy development, policies on financial supports for renewable energy development, use of taxes and fees for energy management, policies on energy consumption. Successful experiences of renewable energy policies of some other countries in the world are the basis of following suggestions: develop policies and strategies on renewable energy development, policies on financial support for researches on assessment of potential and technologies of renewable energy exploitation; issuing energy taxes or carbon tax, environmental fees for fossil fuels production and consumption in order to promote investment for.