The invention discloses a coal-saving type integrated system with high-temperature tower type solar heat complementing a coal-fired power plant. The integrated system is characterized by comprising a plurality of high-pressure heaters connected in series, a plurality of low-pressure heaters connected in series, a boiler, a steam-water separator, a coal-fired power plant heat receiving device, a solar heater, a high-pressure steam turbine cylinder, an intermediate-pressure steam turbine cylinder, a low-pressure steam turbine cylinder and an electric generator, wherein the boiler is provided with a coal economizer and a water cooling wall. According to the novel integration scheme, fused salt is used as an intermediate heat exchange working medium of a tower type solar heat collection system, superheated steam and reheat steam are heated at the same time, the heat collection temperature of solar heat is increased by using a tower type solar heat collector, and an overheating and reheating two-stage integrated method is adopted so that the problem that normal operation of a steam turbine is influenced due to the fact that fluctuation is generated after the solar heat is introduced into a coal-fired unit can be avoided. Compared with a traditional integrated mode, the integrated system has the advantages that the utilization of high temperature of the solar heat is more reasonable, and meanwhile, the thermodynamic advantage and the economical advantage are remarkable.