There is a widespread problem of pathogenic bacteria contamination in daily life scenarios. If one cannot wash hands promptly after contact, it may have many adverse effects on physical health. Scientific hand washing is very important. How to "scientifically wash hands" to protect personal and family health? On the occasion of the "Global Handwashing Day", the Population Culture Development Center of the National Health Commission jointly launched the 2023 Scientific Handwashing Proposal (hereinafter referred to as the "Proposal") with the Chinese Academy of Sciences Qingdao Institute of Bioenergy and Process, Shufujia and Jingdong. The research results of the "Proposal" show that pathogenic bacteria have been detected in all sampled samples in daily life scenarios, with a detection rate of 100%, reflecting the varying degrees of pathogenic bacteria pollution in public places. The detection rate and types of pathogenic bacteria in public places such as express delivery and distribution centers, public transportation (shared bicycles, subways), gyms, and hospitals are relatively high, and the pollution of pathogenic bacteria is relatively serious. This means that as daily life scenarios become increasingly diverse, establishing a comprehensive and systematic awareness of hand washing in different life scenarios and cultivating scientific hand washing habits have become more important. Just 'washing hands before and after meals' is not enough for the top ten scenarios in daily life. Scientific hand washing is essential for people's daily lives. When' bacteria come from the hand, disease comes from the mouth 'becomes a common saying, cultivating good habits of hand washing and antibacterial activity has also become a consensus among the public. The correct understanding of the meaning and basic knowledge of hand washing is generally high. According to research data from the "Proposal", approximately 92% of respondents are familiar with the "Seven Step Washing Technique", but less than 10% of respondents can use the "Seven Step Washing Technique" to wash their hands in daily life scenarios. Many people believe that washing hands before and after meals is the only way to inhibit bacteria. Although the importance of hand washing and the awareness of scientific hand washing are basically in place, the public's good hand washing habits have not been fully developed, and their understanding of hand washing scenarios and the practice of correct hand washing methods still need to be improved. Therefore, the "Proposal" focuses on the "Top Ten Scenarios" in life that are prone to the breeding of pathogenic bacteria, widely spreading the importance of hand washing and correct hand washing methods, helping more people develop healthy lifestyle habits and benefit from them. The research results of the "Proposal" show that Acinetobacter baumannii and Klebsiella pneumoniae are the main dominant bacteria in various environmental scenarios, while Escherichia coli and Pseudomonas aeruginosa tend to be more site-specific. The research results of this "Proposal" to some extent remind the public to enhance their awareness of hand washing scenarios, pay attention to personal health protection in relevant scenarios, wash hands frequently, and use correct scientific hand washing methods to reduce the risk of infection with pathogenic bacteria. Therefore, in addition to mastering the "seven step washing technique", it is also very important to increase the frequency of hand washing and antibacterial activity in the "ten major scenes" of daily life. Establishing scientific hand washing habits is of great significance for promoting public health. The "Healthy China 2030" Plan Outline states that "establishing good hygiene habits such as regular hand washing for the whole population plays an important role and significance in promoting the development of healthy hygiene habits among the general public, especially children and adolescents." Under policy guidance, we will work together with authoritative institutions and experts in the medical field to strengthen health education for all employees and enhance the awareness of hand washing among the whole population, More efforts are needed to protect public health. Pay attention to healthy students