Solar water cup lamp

The invention discloses a solar water cup lamp which comprises a cup body and a cup cover matched with the cup body, wherein a first thin-film solar cell is arranged at the top of the cup cover; a first storage battery connected to the first thin-film solar cell by virtue of a lead wire is arranged inside the cup cover; the first storage battery is connected to a light bulb fixedly arranged on the side face of the cup cover; a second thin-film solar cell is arranged on the cup body along the peripheral side of the cup body; the second thin-film solar cell is connected to a second storage battery at the bottom of the cup body; a groove is formed in the bottom of the cup body; an electric heating wire connected to the second storage battery is embedded inside the groove; and the shape of the electric heating wire is matched with the shape of the groove. The solar water cup lamp disclosed by the invention can be used as a water cup which is capable of maintaining water temperature for a long time and can also serve as a light source which can light up constantly; the solar water cup lamp is free from any environmental pollution, environment-friendly and safe; the solar water cup lamp begins to make use of solar energy from small parts, so that the lamp is consistent with current social concept on environmental protection and cleanliness and is worthy of popularizing.