The invention belongs to the technical field of chemical industry, and particularly relates to a denitrification technology for phenolic products, in particular to a technology for removing nitrides from the phenolic products such as phenol, m-cresol, p-cresol, o-cresol and the like. The denitrification technology comprises specific steps as follows: a catalyst is loaded into a fixed bed reactor, then to-be-denitrified phenolic products are subjected to sample introduction, and samples are continuously denitrified in the fixed bed reactor, wherein the catalyst is a ZSM-5 molecular sieve, an X type molecular sieve, a Y type molecular sieve, a beta molecular sieve or a mordenite molecular sieve. The denitrification technology for the phenolic products has the advantages as follows: the denitrification rate is high, separation is easy, conditions are mild, the service life is long, little environmental pollution is produced, recycling can be realized, and the denitrification effect is not reduced after catalyst regeneration and the like.