The present invention provides an oral cleansing agent set, which includes: toothpaste and oral spraying agent. The toothpaste contains chitin of a first concentration, and arginine. The oral spraying agent contains chitin of a second concentration, a stabilizer, and a first solvent. The present invention is able to provide a convenient-to-use choice of oral cleansing agents for different occasions. Furthermore, a first volume of the oral spraying agent is added to a second volume of a second solvent for forming mouthwash, wherein the first volume is 5 to 40 times of the second volume, and the second solvent is water.本發明係一種口腔清潔劑組，其包括：牙膏及口腔噴劑，該牙膏包含第一濃度之幾丁質及精胺酸，且該口腔噴劑包含第二濃度之幾丁質、安定劑及第一溶劑。本發明能提供不同場合下便於使用的口腔清潔劑選擇。
