The restaurant and service industry is a very important contributor to the global economy and the Thai economy. In particular, micro, small and medium enterprise (MSMEs) restaurant in Bangkok, the capital city of Thailand, accounts for 41.78% of the total restaurants in the country. However, these sectors are vulnerable and susceptible to natural hazards such as the COVID-19 outbreak. This research aimed to study the degree of the impact of COVID-19, measures already taken to address this issue and measures to implement in the future for the issues. This research collection data from 100 respondents via interview by telephone. We will find the decision and adjustment of the restaurant business. It depends on consumer behavior, society and technology that makes consumers more comfortable. It also reduces the risk of infection.