Task list can effectively solve the differences in concept understanding and action cognition of emergency communication joint command and control organization and management. Full and correct requirement analysis is the basis and premise of developing emergency communication task list (ECTL). Based on DoDAF version 2.0, this paper proposes a multi viewpoint requirement analysis method, and establishes an ECTL requirement analysis model from the viewpoint of full, operational, capability and system viewpoints, which provides a basis for the next task list requirement analysis.