NOVELTY - The method involves assembling mount frame. The solar panel (20) is attached to mount frame for assembling photovoltaic power generation unit (10) to be fixed to the track (30). The photovoltaic power generation unit is conveyed to preset position along the track side by using wheel, while fixing jig to the track. The unit line is constructed row by fixing photovoltaic power generation unit to up-down direction. The wheel is removed from perpendicular support material, after constructing the unit line.    USE - Method for constructing photovoltaic power generation installation structure (claimed) for factory and apartment.    ADVANTAGE - The providing of scaffold in the temporary yard for assembling the photovoltaic power generation unit become unnecessary, thus the construction operation becomes markedly easy. The construction expenses are cheap and are extremely excellent in economical efficiency. Since the arrangement of scaffold or crane is unnecessary, the arrangement can be made densely without ensuring the uninstalled space of solar panel in the planned installation site of photovoltaic power generation installation structure. The generating efficiency of the photovoltaic power generation installation structure can be improved sufficiently. The complication during solar panel installation work can be reduced remarkably. The time required for performing the construction process can be shortened markedly. The attachment or detachment of wheel can be made possible. The required number of wheel can be decreased sharply, thus improving the economical efficiency. By providing the rotational drive apparatus to rotate wheel, the self-propelled of photovoltaic power generation unit can be attained for improving the workability. The piece fastening bolt can be tightly connected only by bolting of bolt without turning the hand to the nut side, thus the solar panel can be easily attached to the mount frame. The track can be resisted more nearly and strongly with respect to the extraction arising by strong wind.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a photovoltaic power generation installation structure.    DESCRIPTION OF DRAWING(S) - The drawing shows an explanatory view illustrating the constructing of photovoltaic power generation installation structure. (Drawing includes non-English language text)    Photovoltaic power generation unit (10)    Solar panel (20)    Track (30)    Track material (31)