Dimming and toning system

The invention discloses a dimming and toning system. The dimming and toning system comprises a central control board, a controller, one or more decoders and one or more light-emitting diode (LED) lamps corresponding to each decoder; the central control board is used for sending a control command; the control command comprises mode information corresponding to a control mode and service information of a service to be executed in the corresponding control mode; the controller is used for receiving the control command and resolving the service information according to the mode information so as to acquire a driving signal of the service to be executed in the control mode; and each decoder acquires a duty ratio signal corresponding to each light source of each LED lamp according to the driving signal, and controls each light source of current each LED lamp according to the corresponding duty ratio signal. The dimming and toning system can be used for controlling the brightness, tone and color of lamps.