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The environment of room temperature is complicated and it is difficult to get precise mathematics model for the control of air-condition with frequency change. It is difficult using conventional PID or fuzzy control way to control air-condition to get good control performance. A new controller is designed to control air-condition based on fuzzy neural network in this paper. Controller parameters can be trained via neural network quickly in control. In order to improve learning speed and overcome the shortcoming of local optimization, designed learning parameters can be adjusted according to error and error change in training. So the designed controller has strong self-adapting character in controlling process. Simulating experiment shows that the designed controller has better controlling effect than other conventional PID or fuzzy controller.