To provide a new solar battery module array having a snow guard structure.

A solar battery module array 1 includes a plurality of support rails 11 and a solar battery module 21. The plurality of support rails 11 are arranged at spaces for each other along an inclined direction of an installed surface 2. The plurality of support rails 11 are fixed on the installed surface 2 so as to be horizontally elongated. The solar battery module 21 is supported by the support rails 11 mutually neighboring in the inclined direction. The support rail 11 has a projection 19. The projection 19 projects in a direction perpendicular to the installed surface 2 than a face opposite to a face on the side facing the installed surface 2 of the solar battery module 19. The projection 19 is provided below a top edge in an inclined direction of the support rail 11.