A shower control system, comprising a controller and a control panel; the controller comprises a cool water inlet and a hot water inlet, cool water and hot water respectively flow into two chambers of a pressure balanced valve through the cool water inlet and the hot water inlet; two chambers of the pressure balanced valve are connected to a mixing water chamber of a temperature control valve respectively through a cool water inlet hole and a hot water inlet hole, the temperature control valve is controlled by a first stepper motor to adjust the water area of the cool water inlet hole and the hot water inlet hole so as to adjust the proportion of the cool water and hot water in the mixing water chamber; the temperature control valve further comprises a mixing water outlet hole connected to a volume regulation valve; the volume regulation valve comprises a pivot valve and a second stepped motor, the second stepped motor adjusts the water area of the outlet opening of the pivot valve; the outlet opening of the pivot valve is connected to a first outlet and a second outlet; the first outlet and the second outlet are respectively disposed with an electromagnetic valve to control to close and open; the control panel comprises a knob, the top surface of the knob is disposed with an inner ring and an outer ring; the outer ring is disposed with outlet buttons corresponding to the first outlet and the second outlet; when the outlet button is touched, the circuit of the controller sends a signal to the electromagnetic valve to control the first outlet or the second outlet to open; the inner ring is disposed with a display screen with a temperature displaying area, a volume displaying area, a temperature adjusting mode icon, a volume adjusting mode icon and a lock mode icon; when the knob is long pressed, the control panel is open, the inner ring lights up; the temperature displaying area, the volume displaying area of the displayer screen respectively displays the temperature and volume at the last time's use, and the lock mode icon is selected; at this time, when one outlet button of the outer ring is touched, the outlet button lights up, the outlet terminal corresponding to the outlet button discharges water out according to the temperature and volume at the last time's use; when the knob is pressed, the control panel enters lock mode, the outlet temperature and outlet volume change to preset values in the lock mode; at this time, when the knob is rotates, the outlet temperature and the outlet volume do not change; in the lock mode, when the knob is rotated, if the temperature adjusting icon or the volume adjusting mode icon is selected and the knob is pressed again, the control panel enters temperature adjusting mode or volume adjusting mode; when the control panel enters temperature adjusting mode, the volume displaying area lights off; when the control panel enters volume adjusting mode, the temperature displaying area lights off; in the temperature adjusting mode or the volume adjusting mode, when the knob is rotated, the displaying content of the temperature displaying area or the volume displaying area changes; when the knob is pressed again, the displaying content of the temperature displaying area or the volume displaying area produces electrical signal to send to the first stepped motor or the second stepped motor to control the rotating area of the first or second stepped motor so as to change the temperature or the volume; when the temperature or the volume adjusting is finished, if the knob is pressed again, the control panel exits the temperature adjusting mode or the volume adjusting mode.