To provide: an electrode contact member of a vacuum circuit breaker, which is obtained by forming a thick Cr fine dispersion layer on a surface of a Cu-Cr alloy base metal and which brings about improved dielectric strength and interrupting performance; and a method for easily producing the electrode contact member of the vacuum circuit breaker through easy formation of the Cr fine dispersion layer.

The electrode contact member of the vacuum circuit breaker comprises the Cu-Cr alloy base metal 1 containing 40-80 wt.% of Cu and 20-60 wt.% of Cr, and the Cr fine dispersion layer 2 of 500 m to 3 mm in thickness formed on the surface of the base metal 1 through surface treatment by friction stir processing. The Cr fine dispersion layer 2 is subjected to surface flattening treatment prior to use.