In order to improve the permeable performance of pavement,polymer pervious concrete has been widely used in the construction of sponge city. Polymer experiment, special fine sand and epoxy resin were used to prepare materials required in tests. The influence of particle size and polymer content on the compressive strength and permeable coefficient of permeable concrete were discussed by controlling variable method. At the same time, the simulation experiment of blockage is carried out. Based on the image analysis, the pore of the permeable concrete is analyzed. Finally, the mechanism of its performance change is analyzed by observing the microscopic structure of the concrete. The experimental results show that with the increase of the amount of epoxy resin admixture, the compressive strength of epoxy resin permeable concrete increases and the permeable coefficient decreases. The compressive strength of epoxy resin permeable concrete will increase initially and then decrease with the increase of the dosage of the large particle size aggregate. The aggregate blending ratios with particle sizes of 0.15~0.3 and 0.3~0.6 were 1:1, with a compressive strength of 41.7 MPa and a permeation coefficient of 1.7 mm/s,as the best performance. After the product blocks four cycles, the permeability attenuation coefficient is less than 20%, and the anti-blockage performance is satisfactory and promising.