The present invention provides an electrode of a cold cathode fluorescent tube having excellent sputtering resistance and processability and capable of reducing a tube voltage, and a cold cathode fluorescent tube employing the same. The cold cathode fluorescent tube (1) has the electrode (3) of cold cathode fluorescent tube consist of 0.1-30% of Mo relative to total quality, Fe and alloy of inevitable impurities. The alloy contains 0.1-10% of Mo relative to total quality ideally, 1.5-5.5% of Mo more ideally, and also contains Ru ideally. Or, the mentioned alloy contains 0.1-6% of Nb relative to the total quality of the alloy ideally.