A low voltage triggering silicon controlled rectifier (LVTSCR) is disclosed. The LVTSCR utilizes an added resistor disposed in a second doped region between the anode of the LVTSCR and the emitter of the parasitical bipolar PNP transistor to increase the holding voltage thereof when the LVTSCR is triggered. The LVTSCR includes a semiconductor substrate with a first conductive type and a gate. The semiconductor substrate includes a first doped region with a second conductive type, a second doped region with the first conductive type, a third doped region with the second conductive type, a fourth doped region with the second conductive type and a fifth doped region with the first conductive type. The gate is applied with a lower triggering voltage to trigger the LVTSCR.