In recent years, multirate control has been evaluated for various nonlinear models. This paper presents a multirate control method for a twin-rotor type model helicopter. It is known that a twin-rotor type model helicopter is not easily controlled because of its strong nonlinearity. Although a multirate control method for nonlinear models has already been proposed, a significant number of calculations are required. Thus, nonlinear theory is not practical for built-in computers with low computing power. Therefore, this paper proposes a new control method for a nonlinear plant. In the proposed method, a linear control law is designed based on a linearized nonlinear plant model. The experimental results show that the control objective can be achieved by 2DOF (degree-of-freedom) integral compensation, even if there is a modeling error, and the effectiveness of the proposed method is verified. © 2014 ISSN 1881-803X.