The invention discloses bleaching gel with an odor-removal effect and a production process of the bleaching gel. The bleaching gel with the odor-removal effect comprises, in weight percent, 2%-5% glycerol, 3%-6% of ethanolamine, 0.2%-0.7% of calcium nitrate, 1%-3% of carbomer, 0.5%-1.5% of eugenol, 30%-40% of deionized water, 20%-30% of gelatin, 5%-10% of secnidazole medicines, nano-zinc oxide, maltitol, chitosan, flavoring agents, plant extracts, traditional Chinese medicine extracts, sweetening agents and tea polyphenol. The secnidazole medicines and the nano-zinc oxide are added into raw materials, anaerobic bacteria in an oral cavity can be killed, so that the oral cavity is clean and sanitary, the traditional Chinese medicine extracts can inhibit and balance normal flora in the oral cavity, harm of harmful bacteria in the oral cavity to human health is effectively reduced, and mouth health of people is guaranteed.