PURPOSE: A binaphthol aldehyde derivative and a producing method thereof are provided to safely produce the binaphthol aldehyde derivative without using dangerous materials including n-butyl lithium. CONSTITUTION: A binaphthol aldehyde derivative is marked as chemical formula 1. In the chemical formula 1, X refers to an alkyl group of C1~C10 substituted with more than one substituent selected from the group consisting of hydrogen, halogen, amino, nitro, cyano, formyl, carboxyl, halogen, hydroxyl, and aryl of C6~C10, alkylcarbonyl of C1~C10, and alkoxy of C1~C10, respectively. N and M are integers of 0~5. R1 is selected from the group consisting of the alkyl of C1~C5, arylalkyl of C6~C10 and alkoxy alkyl of C2~C10.