The invention provides a PCB hole metallization method based on electric leakage influence suppression and a PCB. The PCB hole metallization method based on suppression of the electric leakage influence comprises the following steps: carrying out hole conditioning treatment for cleaning
grease on the surface of a PCB; micro-
etching treatment: removing oxides on the
copper surface of the PCB and
etching the
copper surface of the PCB; wherein the micro-
etching grounding conductor is arranged in the micro-etching cylinder, and if electric leakage occurs, the micro-etching grounding conductor is used for absorbing charges of liquid
medicine in the micro-etching cylinder, so that the micro-etching grounding conductor is used for guiding the charges of the liquid
medicine in the micro-etching cylinder to the floor stand; preimpregnation treatment: forming a protective film on the hole wall and the surface of the PCB; activating treatment is carried out to enable the
palladium colloid to be attached to the hole wall of the PCB; acceleration
processing: stripping the
tin colloid layer on the surface of the PCB and in the hole to
expose the
palladium colloid layer; and carrying out chemical
copper treatment for forming a copper layer on the hole wall of the PCB. Therefore, the part, immersed into the micro-etching cylinder, of the micro-etching grounding
assembly has high
corrosion resistance, and the service life of grounding treatment is prolonged.