The demand of hosing market of the Hu Wei Liao and the Jheng Zin Liao readjustment areas, where are close to the Tainan science-based industrial park and the Tainan technology industrial park, is considerable due to traffic are convenient. For this reason, the trade of these two adjustment area is not only very hot but also the most intensive areas in Tainan lately. The purposes of this price were to investigate price of new housing and its hedonic property through questionnaire and developed a predictive model of the housing price by the method of back-propagation artificial neural network（BANN）, that is high accurate learning, fast recalling speed and it can use input information containing noise. But BANN has problems of local minima and slow convergence, so in the paper added the Cauchy machine switching condition to solve these two problems in order to establish the housing price model of Tainan readjustment area at the same time.
