The invention solves the defect in the prior art that a tunnel surrounding rock integrally loses stability due to dynamic pressure prevention, and provides a prevention method for the dynamic pressure area of a working face. Pressure relief holes are vertically arranged in two rows in the side surface of a working face tunnel coal pillar with the space of 3m and the row pitch of 1m; the distance between the upper row of pressure relief holes and a top plate is 1m; the length of the pressure relief holes is 1/2 of the width of the coal pillar; one row of side-pasting stakes are arranged on the coal pillar side with the space of 0.5m; and one beam and three pillars are adopted for a working face tail tunnel advanced hydraulic monomer with the space of 1m. With the method, a bottom plate rock layer can be positioned in a stress lowering area so as to guarantee the stable state of the bottom plate rock layer. The pressure relief holes have the advantages of small construction workload and higher construction speed, and the extraction work is not affected. The prevention method for the dynamic pressure area of the working face is especially suitable for a tunnel bottom heave used for controlling the high ground stress.