The present study was conducted at Anhui Agricultural University, Hefei, China during 2018 and was compiled as a review paper from internationally recognized published articles plus Annual/Environmental reports of documented organizations. Leafhoppers (Auchenorrhynca: Cicadellidae) are small, very active jumping insects that commonly feed on a variety of host plants. Leafhoppers are agricultural pests while some species are also vectors of many plant viruses. Around 25000 species of leafhoppers have been identified and described by the experts. The study on leafhoppers plays a vital role in understanding their roles in our agroecosystem. This review paper summarizes the basic information regarding the morphology, biology and ecology of leafhoppers.