The present invention relates to a real estate market price estimation system using big data and a method thereof. The real estate price estimation system according to embodiments of the present invention comprises : a real transaction price acquisition part acquiring real transaction price and building-related information of a real transaction real estate placed within a predetermined area on the basis of a real estate to be evaluated; a learning model generation part generating a transaction price estimation learning model by using the acquired real transaction price and building-related information; and a market price estimation part estimating market price of the real estate to be evaluated by applying the building-related information of the real estate to be evaluated to the transaction price estimation learning model.(100) Real transaction price acquisition part?(200) Learning model generation part?(300) Market price estimation part?(500) User interface provision partCOPYRIGHT KIPO 2017