The present invention provides a system for providing a price appraisal of a real estate building which allows a price appraisal for a real estate building based on past examples to standardize a building transaction. According to the present invention, the system for providing a price appraisal of a real estate building comprises : an example information server to store buying/selling example information including a building purpose and location information for an existing transaction building which is a bought/sold real estate building in a building database; a building information input module to receive building information including a building purpose and location information for a transaction target building which is a real estate building to be appraised; an example information analysis module to analyze the buying/selling example information stored in the example information server to generate buying/selling analysis information; and an estimate calculation interface including a reference estimate calculation module to generate reference estimate information based on the buying/selling analysis information, and a building estimate generation module to compare the reference estimate information and the building information of the transaction target building to generate building estimate information.(10) System(20) Client(30) Agent(AA) Transaction target building information(B1, B2) Price appraisal information(CC) Existing transaction building information(DD) Real estate transaction mediation(EE) Service chargeCOPYRIGHT KIPO 2017