In CPOF, two-handed interaction which can increase the communication bandwidth applies commanders' common skills to the interaction with computers for releasing their cognitive burden and improving command efficiency. The research proposed studied key technology of infrared multi-touch recognition and position, analyzed the method of two-handed-touch-based interaction and its state model, and discussed the model of two-hand interaction process. Finally, a touch-based two-handed command and discussion system was designed, and the result proved the validity of the interaction methods.