A fluid-driven stirring apparatus includes a fluid introduction passageway, a fluid chamber connectable to the fluid introduction passageway, a container for accommodating liquid to be stirred, and a stirring assembly. The stirring assembly includes a driving impeller arranged in the fluid chamber, a stirring shaft fixedly connected with the driving impeller and extending through the fluid chamber into the container, and a stirring member arranged on the stirring shaft and adjacent to the bottom of the container. Thus, the fluid drives the driving impeller to rotate the stirring shaft, so that the stirring member can stir the liquid in the container.