In BZ 34-2/4 Oilfield，the heterogeneity has been aggravated and the injection water circulation is inefficient after long-term water flooding. Therefore，profile control measures should be taken to improve the water flooding development effect. Based on the characteristics of BZ 34-2/4 reservoir，the gelation time and gelation viscosity of the phenolic gel were tested，the experiments of plugging and liquid flow diversion of the phenolic gel were carried out by using epoxy resin casting core and heterogeneous core experiment. The results showed that the curing agent（resorcine）and auxiliary（ammonium bicarbonate）could increase the reaction rate and gel strength of phenolic gel profile control agents. The gel strength could be improved by adding curing agents to polymer SD-201 phenolic gel profile control agent and adding curing agents and auxiliaries to emulsion polymer DW-R phenolic gel profile control agent. Compared with the polymer DW-R phenolic gel，the polymer SD-201 phenolic gel had better plugging effect and liquid flow diversion effect in porous media. When the permeability K_g of homogeneous core was from 300×10^-3 μm2 to 5400×10^-3 μm²，the plugging rate was 99.65% to 96.94%. When the permeability of heterogeneous core was 300× 10^-3/900×10^-3/2000 ×10^-3μm²，the oil recovery could be enhanced by 19.10% after the profile measurement.