Light emitting diode lightning circuit of saddle-ride-type vehicle

Problem To provide a light emitting diode lighting circuit which can prevent erroneous lighting caused by the generation of a leak current, and also can reduce the generation of heat due to a resistance connected to the light emitting diode lighting circuit for preventing erroneous lighting. Means for Resolution In a light emitting diode lighting circuit of a saddle-ride type vehicle including a control means which turns on a lamp formed of a light emitting diode mounted on a vehicle, a control means (102) includes: an input port (121) to which a power source voltage is inputted from a power source in response to turning on or off of a manipulation switch (104); an input circuit part (123) which determines a leak state of the manipulation switch (104) based on an input voltage to the input port (121); a control part (124) which controls lighting of a lamp (101) based on a result of the determination by the input circuit part (123); and an erroneous lighting prevention resistance (122) which has one end thereof connected between the manipulation switch (104) and the input circuit part (123) and has the other end thereof grounded, and an intermittent power source switch means (126) which is cyclically turned on or off by the control part (124) is provided between the manipulation switch (104) and the power source.