The utility model provides a light -emitting diode (LED) lighting device which characterized in that has: the LED light emitting module, it has LED, the lens module, it is located the place ahead of LED light emitting module, the casing, it is accomodate the LED light emitting module, the casing has following structure: the lamp holder of locating the rear along with the orientation is close to, the sectional area of casing diminishes, the radiator, its constitution casing at least partly, right the heat that LED sent dispels the heat, the radiator has: the bottom, it is provided with the LED light emitting module with the lens module, urceolus portion, it is located and compares the position at rear is leaned on to the bottom, platelike fin is followed the neighboring of bottom is being arranged a plurality ofly the fin, the fin uses this bottom and extends with the side towards the place ahead as the benchmark, the fin with the outer peripheral face of urceolus portion is connected, and extend side of this outer peripheral face of orientation, and banding radiator, it will the position of the periphery side of fin is connected each other.