Biomass could be used as a cellulosic material in bioethanol production. Nevertheless, the application capability depends on its cellulose percentage as well as its structure. The article analyzes the chemical composition, structure and the availability of rice husk, rice straw, and sugarcane waste, and evaluates their application availability in bioethanol production. Among all the components of plant-based biomass resources, cellulose structure and its percentage are most important for ethanol production.