A heliostat apparatus including at least one solar battery panel and in which an angle of a panel surface of the solar battery panel is adjusted to follow movement of the sun, the heliostat apparatus comprising: a frame supporting the solar battery panel; a north-south rotation mechanism having an elevation angle rotation axis for rotating the frame in a north-south direction with an east-west direction as an axial direction; an east-west rotation mechanism having an azimuth angle rotation axis for rotating the frame in an east-west direction with a north-south direction as an axial direction; and a support for supporting the frame, wherein the frame and the solar battery panel are integrally rotated in the north-south direction by the north-south rotation mechanism with the elevation angle rotation axis as a rotation axis so that an angle in the north-south direction of the panel surface of the solar battery panel supported by the frame is adjusted; the frame and the solar battery panel are integrally rotated in the east-west direction by the east-west rotation mechanism with the azimuth angle rotation axis as a rotation axis so that an angle in the east-west direction of the panel surface of the solar battery panel supported by the frame is adjusted; the elevation angle rotation axis and the azimuth angle rotation axis are in a skew positional relationship; one of the elevation angle rotation axis and the azimuth angle rotation axis passes through a top of the support and is disposed higher than the other; the solar battery panel is disposed between the elevation angle rotation axis and the azimuth angle rotation axis; and the north-south rotation mechanism and the east-west rotation mechanism each have a truss structure, the frame being held by the truss structure. a frame supporting the solar battery panel; a north-south rotation mechanism having an elevation angle rotation axis for rotating the frame in a north-south direction with an east-west direction as an axial direction; an east-west rotation mechanism having an azimuth angle rotation axis for rotating the frame in an east-west direction with a north-south direction as an axial direction; and a support for supporting the frame, wherein the frame and the solar battery panel are integrally rotated in the north-south direction by the north-south rotation mechanism with the elevation angle rotation axis as a rotation axis so that an angle in the north-south direction of the panel surface of the solar battery panel supported by the frame is adjusted; the frame and the solar battery panel are integrally rotated in the east-west direction by the east-west rotation mechanism with the azimuth angle rotation axis as a rotation axis so that an angle in the east-west direction of the panel surface of the solar battery panel supported by the frame is adjusted; the elevation angle rotation axis and the azimuth angle rotation axis are in a skew positional relationship; one of the elevation angle rotation axis and the azimuth angle rotation axis passes through a top of the support and is disposed higher than the other; the solar battery panel is disposed between the elevation angle rotation axis and the azimuth angle rotation axis; and the north-south rotation mechanism and the east-west rotation mechanism each have a truss structure, the frame being held by the truss structure.