Experimental results of a copper vapor laser are reported, in which copper halide is used as lasing material. Maximum output of 72 mW was obtained when the laser operated continually for over 3 hours each time with a total operating time of 30 hours by using a sealed tube of 28 cm active length at the discharging pulse frequency of 14 KC. In addition, laser output is obtained by discharge of double pulse with two ball gaps. Finally, applicability of copper vapor laser is discussed.