To provide a control device for a continuously variable transmission, enabling to simplify system control.

A plant 53 using a primary flow amount Qp and a secondary flow amount Qs as inputs and primary pressure Pp and secondary pressure Ps as outputs is combined with a feedback linearized part 52 which is linearized in an input/output feedback linearizing technique, and control inputs v1, v2 from a linear control part 51 such as a PI control part are used to construct a new linear control plant.