The invention discloses a composite passage remote controller of a model helicopter, and the remote controller comprises a shell, a circuit board and a control rod, wherein the remote controller is provided with a passage selecting switch, and the functions of two to five-passage remote controllers are integrated on one remote controller. A user can select any passage gear according to the demand, and the other passages are automatically shielded without interfering each other once one passage gear is selected. Therefore, the remote controller can realize multifunctional of one machine, one remote controller has all functions of two to five-passage remote controllers, and a five-passage model helicopter can be randomly changed into two to five-passage model helicopters or a multi-passage model helicopter can be randomly changed into a few-passage model helicopter (for example, three passages are used as two passages, four passages are used as three passages and five passages are used as four passages) according to the demand. The one-remote controller-one model helicopter mode disclosed by the invention can replace the current four-remote controller-four model helicopter model, thereby reducing the participation cost of the model aircraft enthusiasts and simplifying the training process of fly control operations of the model helicopters.