Informationization management system and method for combining solar energy hot water supply with urban property

The invention relates to an informationization method and a management system for combining solar energy hot water supply with urban property, wherein the system comprises at least one hot water supply control unit that is a building host and used for monitoring various parameters of and controlling the action of a solar energy hot water heater by combining with the solar energy hot water heater; and at least one user sub-machine which is connected with each building host and used for sending information which users demand to the hot water supply control unit and receiving response. Each building host is connected to a sub-processor in an emptying water storage unit. The building host is used for sending control instructions to the sub-processor in the emptying water storage unit. The sub-processor in the emptying water storage unit controls to emptying water storage unit to collect the emptied hot water and reclaim the collected emptied hot water to the solar energy hot water heater according to the control