The present invention provides a non-aqueous electrolyte composition with excellent high-temperature stability and a non-aqueous electrolyte secondary battery using the same. The non-aqueous electrolyte composition includes a supporting electrolyte, an organic solvent, and at least one kind of chemical compound (a) selected from the group consisting of a chemical compound (a1) indicated by the following general formula (1) and a chemical compound (a2) indicated by the following general formula (2).