Abstract: A substrate storing and aligning apparatus is proposed. The substrate storing and aligning apparatus is capable of efficiently using space in substrate bonding equipment. The substrate storing and aligning apparatus in the substrate bonding equipment for bonding substrates includes a front end buffer including a front end storing slot configured to temporarily store a substrate, and a front end opening configured such that a transfer robot is movable therethrough to transfer the substrate from the front end storing slot, and a front end aligner provided to be stacked on an upper portion of the front end buffer, and configured to rotate the substrate so as to align the substrate.