Provided is an organometallic complex that highly effectively emits a phosphorescent light and an organic electroluminescent device using the same. The organometallic complex can be used to form an organic layer of an organic electroluminescent device, is a highly effective phosphorescent material emitting light of 400 nm to 650 nm, and can be used with a green emission material or a red emission material to emit a white light. In addition, the organometallic complex can be used in a solution process due to its high solubility, and thus, is suitable for large-scale screens.