Abstract: Under the background of the marine economic powerful nation strategy, the development of islands is restricted by their special natural conditions, which is relatively backward compared with their neighboring land. Most China's islands are scattered in different areas, and play a role as an important “bridgehead” in the process of human discovering the ocean, therefore, the coastal provinces and cities have been always seriously concerning about the development of islands. The evaluation model of island group is constructed with the evaluation index that considering four aspects: resource supply capacity, ecological environment carrying capacity, economic development capacity, and the social support capacity of the island group. The Changdao island group, Nanao island group, and Weizhou island group are selected to conduct the development evaluation, according to their location, connectivity with land, climate type, and availability of data. The evaluation results of above island groups are compared and analyzed. The evaluation results indicate the development of Changdao island group is superior to the Nanao and Weizhou island groups. Referring the analysis, the infrastructure conditions, the tourism development stage, the effective protection of ecological environment, and the attention from local government are the major factors of determining the development of island area.