A lamp system, and more particularly, a lamp heat dissipation system including a heat dissipation function. The lamp heat dissipation system may reduce a module size and improve optical performance by including one light emitting diode (LED) and reducing a distance between a light source and a digital micro-mirror device (DMD) module, and a distance between the DMD module and a projection optical system, and may reduce the module size and improve heat dissipation performance by configuring the LED and the DMD module to dissipate heat as one heat dissipation structure.