From the experience of Japan in liberalizing epidemic control and entry and exit, Japan liberalized domestic epidemic control at the end of March 22, and the entry and exit policies and quotas were gradually relaxed. 1~2 months after the entry-exit liberalization, there was a concentrated outbreak of COVID-19 epidemic and frequent medical collapse. In order to stimulate the recovery of tourism and other consumption, the Japanese government has issued a series of subsidy measures for catering, transportation and accommodation, which have achieved remarkable results. After the liberalization of control, even in the month when the COVID-19 epidemic concentrated, the data performance of catering, retail, accommodation and tourism were significantly better than before the liberalization, and the retracement was small; 11 has basically exceeded the level of the same period in 2119.