The utility model discloses a self filtering formula solar energy fountain device, including floating platform, support frame and a support awl section of thick bamboo, the floating platform is circular tubular structure, the support frame is fixed on the medial surface of floating platform, an awl section of thick bamboo is supported to fixed being provided with of center department of support frame, support an awl section of thick bamboo for the awl tubular structure, and the lower extreme that supports an awl section of thick bamboo fixes in the center of support frame department, the fixed layer board that is provided with in upper end, the upper surface of support frame is cyclic annular interval cross arrangement has solar energy backing plate and water planting plant frame, the center department of layer board fixes and is provided with main solar energy fountain pump, the equidistant fixed vice solar energy fountain pump that is provided with in middle part of support frame. This kind of self filtering formula solar energy fountain device makes the water current circulation flow, and the water planting plant roots on the water planting plant frame plays purifying water body's effect and adopts the power supply of solar energy clean energy, has both reduced electric power facility and has laid the degree of difficulty and cost, the energy can be saved again.