Dispersion method of graphene in phenolic resin and graphene-modified phenolic resin

The invention provides a dispersion method of graphene in phenolic resin. The dispersion method comprises the following steps: A) mixing a graphene solution with first phenolic resin and dispersing to obtain first graphene-modified phenolic resin; and B) mixing the first graphene-modified phenolic resin obtained in the step A) with second phenolic resin to obtain the graphene-modified phenolic resin. According to the dispersion method, graphene can be directly dispersed in phenolic resin very well by virtue of a multi-time dispersion method without being dispersed into formaldehyde, so that the volatilization of formaldehyde is avoided; and the prepared graphene-modified phenolic resin has high strength.