An electric connection member including a cylindrical adaptor means composed of an insulating material and a conductor slidably inserted into the interior of the adaptor means for electrically connecting the ignition coil to the ignition plug and the conductor is composed of a coil spring and a contact member with a predetermined shape and electrically connected to the coil spring. With this arrangement, there can be obtained the electric connection member which has high mechanical and electrical reliability to vibration and further is excellent in processability with a low cost.