Abstract:Using wastewater to cultivate microalgae can reduce cultivation cost and pollution.Proteins,polysaccharides,and lipids of microalgae are major factors affecting the utilization of microalgae resources.The research progress on microalgae cultivation with wastewater as the substrate was reviewed.Centering on component accumulation,we expound the selection basis of microalgae species,the factors affecting microalgae growth,the methods to improve microalgae yield,and the synthesis mechanism of components in microalgae.Finally,we put forward the challenges and possible solutions for microalgae cultivation in the future.