The genus Chrysotus Meigen is reported from Hainan island for the first time. Six species are recorded. The following four species are described as new to science: Chrysotus diaoluoshanus sp. nov., C. hainanensis sp. nov., C. magnuscaputus sp. nov. and C. zhouae sp. nov., Chrysotus biprojicienus Wei & Zhang and Chrysotus serratus Wang et Yang are recorded from Hainan island for the first time. A key to the species of Chrysotus from Hainan island is presented.