The invention discloses an electric power information system resource deploying system and method, and belongs to the field of electric power information systems. The system comprises an electric power information resource device, a storage capacity controller and a system state precaution device. According to the method, aiming at the hidden danger that in current electric power information system resource scheduling and resource dynamic scheduling, the system performance is poor and capacity is not sufficient, a cloud resource capacity resource scheduling method based on a time sequence is provided, through a time sequence model, the change condition of electric power information system resources utilized in a future business cycle is predicted, aiming at characteristics of all information systems in a power grid business, an accurate and flexible resource scheduling strategy is formulated, so that the utilization rate of the information system performance is increased by 30%, the non-planned interrupting duration of the information systems is also lowered by 50%, effective running of all business procedures of the power grid is ensured, and a reference basis is provided for workof operation and maintenance personnel of the power grid information systems.