The invention provides an ecological flowerpot with the automatic watering function. The ecological flowerpot structurally comprises a side wall (14), a bottom (11) and a drainage exit (12) in the bottom. As an improvement, the lower portion of a flowerpot body is connected with the side wall (14), and a dividing wall (17) is arranged at the bottom (11) of the flowerpot body. A cover plate shelf (18) is arranged at the position, shown in the figure 1, of the dividing wall (17) and the side wall (14). A cover plate (16) is placed on the cover plate shelf (18). A water storage tank (13) is arranged at the lower portion of the flowerpot body. A liquid level switch (20) is arranged in the liquid storage tank (13) and used for controlling an electromagnetic valve (25). A sprayer (22) is arranged on a communicating water pipe above the flowerpot body, a water outlet (21) is formed in the portion, on the water storage tank (13), of the communicating water pipe, and water seepage holes (19) are formed in the cover plate (16). When no water exists in the water storage tank (13), the liquid level switch (20) controls the electromagnetic valve (25) to be opened, water in the water pipe is sprayed to a plant and soil in the flowerpot through the sprayer (22), water is added to the water storage tank (13) through the water outlet (21), and when the water storage tank (13) is filled with water, the liquid level switch (20) controls the electromagnetic valve (25) to be closed.