Abstract: A solar power brick includes an optical guide layer, at least one solar cell, at least one electrical connection line and an outer frame. The optical guide layer and the solar cells are provided in the outer frame to combine as an integrated body. The optical guide layer is provided at the central part of the outer frame, and the solar cell is provided between the optical guide layer and the outer frame. The optical guide layer with optical refraction is used to direct the incident light onto the solar cells at the lateral sides to convert incident light into electricity for supplying the electricity to the external devices. The present invention is appropriate for generating electricity and possibly applied to the field which needs the built-in power supply, thereby increasing the optical illuminated area and the received amount of light, improving the overall generating efficiency.