In recent years, in order to meet the needs of sea beach reservoir explorations and developments, a series of artificial islands have been successfully constructed in Jidong oilfield. The project is characterized by silty sea-bed, shallows, deep grooves, sand ridges staggered distribution of the waters and complex terrain conditions. The project locates in the open sea and has no cover, larger storm flow and frozen affect in winter. The exploration and developments of artificial islands in the sea beach have strict demands in safety and environment protection. Thus higher requirements on the design of the artificial island are set forth. This article summarizes the key technology of artificial island design in Jidong oilfield which covers artificial island function, layout,construction standards, bottom protection measures for beach, dike structure, the island domain, reclamation and foundation treatment, external transport and the main aspects in artificial island design.