The invention discloses a tractor work light controller and a control system. The controller is provided with a signal receiving module used for receiving single work light opening or closing signals, a signal processing module used for processing according to the single work light opening or closing signals and further obtaining single work light opening or closing control instructions, and a control instruction output module used for outputting the single work light opening or closing control instructions; a single work light enters the corresponding working state according to the opening or closing control instruction. By adopting the technical scheme, the control and configuration of the single work light are realized, and the lighting and energy saving demands are met to the maximum extent, and the control integration is improved; the scheme is easy to realize and expand; virtual keys are used for controlling the single work light or a set of work lights without increasing the hardware cost; actual physical buttons are not increased, so that the cab layout design is more reasonable.