To provide an environmental protection hydrin rubber, in which an antioxidant and a vulcanizing accelerator that do not generate an environmental contaminant are used, that has rubber properties similar to the usual rubber properties.

This environmental protection hydrin rubber is characterized in that nickel diisononyl carbamate of 0.5-5 pts.wt. as the antioxidant based on 100 pts.wt. of the rubber component in the hydrin rubber composition and copper stearate of 0.1-1 pts.wt. as a vulcanizing assist are added.