NOVELTY - The solar energy and biomass energy complementary thermal power system, comprises a solar light collecting device connected with a solar heat storage tank through a pipeline, a biomass heat power station, a combined refrigerating and icing device for intensive cooling, and a centralized heat supply system. An inlet of a first output heat exchanger (B1) of the storage tank is connected with an outlet of a water supply pump of a biomass boiler. An outlet of (B1) is connected with the inlet of water supply pump. A heat storage medium in storage tank is heat transfer oil and fused salt.    USE - Used as a solar energy and biomass energy complementary thermal power system.    ADVANTAGE - The solar energy and biomass energy complementary thermal power system has low energy consumption, and does not discharge sulfur oxide thus avoiding air pollution.    DETAILED DESCRIPTION - The solar energy and biomass energy complementary thermal power system, comprises a solar light collecting device connected with a solar heat storage tank through a pipeline, a biomass heat power station, a combined refrigerating and icing device for intensive cooling, and a centralized heat supply system. An inlet of a first output heat exchanger (B1) of the solar heat storage tank is connected with an outlet of a water supply pump of a biomass boiler. An outlet of (B1) is connected with the inlet of a water supply pump of the biomass boiler. An inlet pipeline of a second output heat exchanger (B2) of the solar heat storage tank is connected with an output pipeline of a water purification plant. An outlet of (B2) is connected with a heat input pipeline of the combined refrigerating and icing device. The heat input pipeline supplies heat for refrigerating and icing. The combined refrigerating and icing device is connected to a hot water tank of the heat supply system to intensively supply heat to users. The solar heat storage tank is a two-medium or three-medium double-circulation heat storage tank. A heat storage medium in the solar heat storage tank is heat transfer oil and fused salt passing through a solar energy light gathering device. The biomass boiler is connected to the hot water tank. The combined refrigerating and ice making device is lithium bromide absorbing type refrigerating machine or steam jet type refrigerating machine.