The utility model discloses a solar cell unmanned plane, belonging to the field of unmanned planes. The solar cell unmanned plane includes a plane body, a first solar cell and a second solar cell which are arranged on the plane body, four first motors respectively arranged in the four corners of the plane body, four groups of propellers respectively arranged on the four first motors, and a control module for controlling one of the first solar cell and the second solar cell as an airborne power supply. The control module is arranged in the plane body, the first solar cell and the second solar cell are respectively and electrically connected with the four first motors via the control module. By means of the first solar cell and the second solar cell which are arranged on the plane body, the cell redundancy backup can be realized, and the problem of heavy weight of a plane body with double cells in the prior art can be prevented.