The subject of this thesis is the analysis of banks' operations during the COVID-19 pandemic. For this purpose, certain public and health measures have been taken to stop the spread of the virus, but they have left negative consequences around the world. Through the paper, the functions of banks are explained and described in order to make them easier for the reader to understand. The downside effects have also spread to banks, causing them to lose revenue and face major risks. The consequences of this pandemic are progressing on the global economy day by day, and the virus itself will play a decisive role in moving global GDP. In addition to the consequences in the sectors, the pandemic has made it impossible for people to perform their jobs normally and this creates less efficiency and provocativeness. Covid-1 9 has increased the world's financial risks and devastatingly impacted international financial markets. Today's society is constantly under the influence of new technologies, and so the financial Internet services industry is no exception. Social distancing has prompted the closure of the branch network and triggered increased use of intemet banking. It can be said that during the duration of the pandemic, banks have used their potential to prove their availability to customers and partially preserve their operations from extremel lar e losses.