In order to further study the dynamic gelation of phenol formaldehyde resin (PFR) gel in porous media, the dynamic gelation of PFR gel under different permeabilities and injected speeds are studied with the device of circular flow in porous media. The results show that, along with the increase of permeability, the initial dynamic gelation time (IGT) and the final dynamic gelation time (FGT) increase and the gel strength decreases. Furthermore, we determined the relationship between viscosity after dynamic gelation and permeability. The IGT of PFR gel declines at first and then increases as injected speed increases, while FGT of PFR gel increases and gel strength decreases. At the same time, the quantitative relationship of viscosity after dynamic gelation and injected speed is established.The relationship between injected speed and shear rate under different permeabilities is established on the basis of effects of permeabilities and injected speed on dynamic gelation of PFR gel in porous media. And, this paper can provide the theory basis for the selection of injected speed under different permeabilities in profile control.