The invention provides an antibacterial oral cavity nursing agent capable of stopping bleeding. The antibacterial oral cavity nursing agent comprises, by weight, 3.0 to 4.5 parts of a poly acrylic acid polymer, 1.5 to 4.5 parts of sodium lauroyl sarcosine, 1.0 to 3.0 parts of sodium dodecyl sulfate, 28 to 40 parts of a humectant, 0.2 to 0.5 part of a sweetener, 0.3 to 0.7 part of a thickening agent, 30 to 50 parts of a rubbing agent, 10 to 25 parts of deionized water, 1 to 5 parts of cordate houttuynia extract product, and 3 to 6 parts of Merremia boisiana extract product; the rubbing agent isprepared from longan kernel powder and humifuse euphorbia herb powder through combination. The longan kernel powder and the humifuse euphorbia herb powder are combined to obtain the rubbing agent adopted in the oral cavity nursing agent, the oral cavity nursing agent is capable of eliminating tooth stains, and avoiding gingival bleeding caused by friction, no novel haemostasis component is added,and the production cost of the oral cavity nursing agent is reduced.