Within few weeks, when the first reported COVID-19 case in the city of Wuhan, China, the pandemic has spread quickly across nations and tourism has been regarded as the main case in the spread of corona virus worldwide. With no vaccine and limited medical facilities, it plunged the economy into various economic crisis. Both the purchase and production has come to an end due to factory closures; travel bans and border closures. The most severe disruption of the global economy is the national quarantines and unprecedent global restrictions on traveling, bringing international travel to a standstill. As a consequence, tourism operations of many countries have been ceased in March, 2020. According to UNWTO research, 100% UNWTO countries have imposed restrictions on travelling in response to the pandemic and international tourism has completely been closed and the borders were sealed by 72% nations. Due to the cancellation of business trips, holidays, and weekend gateways, tourism industry is heavily impacted by the COVID-19 crisis. So, in this paper we have discussed the impact evaluation of COVID-19 pandemic on tourism industry and its branches. We have reviewed research papers published in 2020, OECD and UNWTO reports.