The invention discloses a power-consumption-free light-gathering solar middle-temperature and high-temperature pressure steam boiling and distillation system. The system comprises a main engine module, a power generation module, a light-gathering heating module, a power control module and a compression module, wherein the main engine module comprises an evaporator, an electric heater and a heat exchanger; the electric heater is electrically connected with the power control module; the power generation module comprises a photovoltaic power generation module which is electrically connected with the power control module; the light-gathering heating module is communicated with the evaporator by an opening type circulating pipeline structure to exchange a solution; the compression module comprises a compressor powered by the power control module, a steam pipeline and a collection pipeline; the evaporator is connected with the compressor; and then the compressor is communicated with the steam pipeline, the heat exchanger and the collection pipeline in sequence. According to the power-consumption-free light-gathering solar middle-temperature and high-temperature pressure steam boiling and distillation system, all operation energy is provided by solar energy and wind energy; and the tracing type light-gathering heater is used for heating and pressure steam is distilled to efficiently prepare water, so that the system is suitable for regions in which electric power is difficult to arrive, such as remote regions or islands, or energy poor regions, seasonal water-shortage regions, water pollution regions or industries.