Abstract: A mosquito survey was made at Rongcheng City, Shandong Province in August, 1991. Altogether 4 genera and 8 species of mosquitoes were collected in this survey, namely Aedes dorsalis (Meigen), Anopheles sinensis Wiedemann, An. yatsushiroensis Miyazaki, Culex fus-canus Wiedemann, Cx. modestus inatomii Kamimura et Wada, Cx. pipiens pallens Coquil-lett, Cx. tritaeniorhynchus Giles and Mansonia uniformis (Theobald). Among them Cx. modestus inatomii and An. yatsushiroensis were found to be the first record for China and Shandong Province respectively. The morphology and taxonomic status of the above two species are discussed briefly.