NOVELTY - The tracking-type solar power generation device has a rotating shaft (1) that is supported with several supports (2a-2e). The supports are arranged equally. A solar cell array (5) is continuously arranged in a parallel direction on rotating shaft with left-right symmetric and with favorable balance on both sides. A bearing (3a-3e) which is provided with an aligning function is arranged in an upper portion of each support, so as to form an eccentric elimination structure. An intermediate portion of the support is provided with a gravity center of shaft.    USE - Tracking-type solar power generation device used in large-scale power station e.g. large-scale solar power system, and photovoltaic power plant.    ADVANTAGE - The arrangement of a solar cell array can be decreased to the shaft and an orthogonal direction. The large numbers are loaded into the shaft in a parallel direction in order to ensure many loading number of sheets, and the shadow extended to a back direction can be shrinked. The support space of each apparatus can be made smaller, when a several tracking-type solar power generation devices are introduced, and the site of a photovoltaic power plant can be used effectively, and the electric power generation amount of per unit area can be increased. The stagnation of the rotary motion accompanying eccentric of the axial center can be eliminated by arranging the bearing which has an aligning function to the upper portion of each support. The bearing can also prevent generation of a local load and can absorb the shift of an axial center, and the bending of the shaft. The troublesomeness of a maintenance operation can be released by utilizing grease supply function, and the introductory expense and the running cost of a tracking-type solar power generation device can be dramatically reduced. The smoother rotary motion can be enabled by arranging a cylinder in the position orthogonal to the shaft to the support, so that the lifetime improvement can be attained.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of the tracking-type solar power generation device.    Rotating shaft (1)    Support (2a-2e)    Bearing (3a-3e)    Cylinder (4)    Solar cell array (5)