A control system for controlling an electric bicycle is provided, which includes an electric bicycle, an information processing unit, a monitoring device, an input device, and a display. The electric bicycle and the information processing unit exchange information with each other, and the information includes operation data on the electric bicycle, control data for the electric bicycle, exercise programs. The monitoring device monitors bodily condition of a bicycle rider, and communicates the monitored data with the information processing unit and the electric bicycle. Operations of the electrical bicycle are controlled by collected information and data. The operations of the electric bicycle include a power output level, gear shift, RPM, speed, and acceleration, and the operations of the electrical bicycle are controlled so as to keep a heart rate of the bicycle rider at a target heart rate.