Based on the revision of theMethods for Urban Plan Formulation and the Technical Guidelines of Environmental Impact Assessment for UrbanMaster Plan (in draft), this paper proposes a management framework for Strategic Environmental Assessment (SEA) of Urban Plans. In this context, the urban plan compilation system and the requirements for Urban Plan SEAs are explained. This is followed by the introduction of three types of urban plan SEAs, namely forecasting SEA, monitoring or follow-up SEA, and retrospective SEA. The relationship among the institutions/agencies involved in urban planning SEAs is discussed and three implementation modes are proposed, including an internal-implementation mode, an external-implementation mode and a mixed-implementation mode. Finally, substantive SEA aspects for various types of urban plans are identified.