VEHICLE LED LIGHTING DEVICE

In a vehicle lamp, enabled to detect a disconnection or a short circuit, judgment of the disconnection abnormality or the short-circuit abnormality by detection of a current value can be performed with high precision even if variation occurs in the power supply voltage that drives an LED lamp. A vehicle LED lighting device includes a drive control means (51) performing drive control of LED lamps (20) and (30) installed in a vehicle, the drive control means (51) includes an abnormality detection means detecting a disconnection or short-circuit abnormality of the LED lamp, the abnormality detection means includes a current detection unit detecting the value of a current flowing through the LED lamps (20) and (30) when the LED lamps (20) and (30) are driven by the drive control means (51), a comparison unit comparing the current value detected by the current detection unit with a predetermined abnormality determination value, and a determination value switching unit switching the abnormality determination value in accordance with variation of a power supply voltage of the vehicle, and whether or not there is the disconnection or short-circuit abnormality is judged based on the abnormality determination value switched by the determination value switching unit (63) and the detected current value.