In the control area, controller designed often depends on a precise mathematical model, but in practice, it is hard to establish a precise mathematical model. In order to solve the difficulty of modeling, this paper proposes the T-S fuzzy model through fuzzy modeling method and verifies its validity with MATLAB software. From the simulation result, it can be seen that this T-S model has very high precision. Moreover, it also establishes T-S model of bed temperature of CFBB based on the input and output data of XIJIAO heat and power plant and designs a PID controller for it. The controller based on fuzzy model works well, this paper provides a new direction for the controller optimizations.