Wet strength copper clad laminate base paper and preparation process

The invention aims to provide wet strength copper clad laminate base paper to meet the requiremetn of a subsequent process for flame retardance. The wet strength bleached wood pulp copper clad laminate base paper is prepared by using eucalyptus wood pulp as papermaking wood pulp and adding a wet strength agent which is 0.18 to 0.32 percent of the total weight of the eucalyptus wood pulp. A preparation process of the wet strength bleached wood pulp copper clad laminate base paper is characterized in that the wet strength agent is added into a head box of a paper machine by a measuring pump. The invention has the advantage that by selection of the paper pulp and addition of the wet strength agent, the base paper has excellent water resistance and the strength is greatly improved so as to meet the requirement in the treatment process of the subsequent process.