In a splice connection member, a core wire holder is integrally formed on an interior of each of a plurality of depressions into which coated wires can be guided. A plurality of pressure blades are provided opposite each other on a wire introduction opening side of the depressions, the pair of pressure blades separated by a distance smaller than an inlet diameter of the wire introduction opening. Each of the pressure blades includes a plurality of blade tips separated by a distance in an axis direction of the coated wires smaller than a thickness of the coating, and the core wire holder includes a plurality of pressure portions. A communicating groove is formed in each of the depressions so as to be open on two ends, passing between the plurality of pairs of blade tips, the communicating groove extending in a circumference direction of each of the coated wires.