The invention discloses to an infant paper diaper with excellent antibacterial performance. The infant paper diaper with excellent antibacterial performance comprises a paper diaper body, wherein thepaper diaper body comprises a liquid permeable layer, a guide layer, a coating layer and a liquid impermeable bottom film layer which are sequentially compounded from top to bottom, the coating layeris coated with an absorbent core body, the absorbent core body is sequentially provided with an upper absorbent layer, an absorbent core material and a lower absorption layer from top to bottom, wherein the absorbent core material comprises a high-molecular water-absorbing resin, a chitosan buffer solution and a fluff pulp, the weight ratio of the high-molecular water-absorbing resin, the chitosanbuffer solution and the fluff pulp is 6-15:0.5-2:15-25. The paper diaper with excellent antibacterial performance solves the problem that the paper diaper has no antibacterial effect or safety uncertainty of the silver-containing antibacterial agent in the prior art, can maintain the pH environment of the paper diaper, and reduces the stimulation of the diaper on the skin.