The Wuhan City Health Commision in China notified a cluster of pneumonia, which causes the disease Covid-19 Pandemic By the end of December 2019. Many countries began to feel the impact of the pandemic due to the decreasing day-to-day bussines operation which led to declining bussines performance and country economic growth. Indonesia also began to shows a weakning of Gross Domestic Product(GDP) by the end of first quarter in 2020 from 4,9% to 2,9% quarterly to quarterly. The banking sector also shows a significant decline in stock price of 29,12%. The purpose of this study was to analyze and evaluate the financial performance of BUKU IV Bank in Indonesia, between three years before and during Covid-19 Pandemic. There are six companies to be analysis: PT. Bank Central Asia(BBCA), PT. Bank Mandiri(BMRI), PT. Bank Raktar Indonesia(BBRI), PT. Bank Negara Indonesia(BBNI), PT. CIMB Niaga(BNGA), and PT. Bank Danamon Indonesia(BDMN). The data were collected from quaterly audited financial reports during 2017-2023. The data were examined using five financial ratio analysis to assess the financial healthiness, referrinng to The Risk-Based Bank Rating(RBBR) is current method used to measure the health of a banks' financial performance, following the applicable regulation of Peraturan Bank Indonesia (PBI) Regulation No.13/1/PBI/2011. Statistical t-tes, Wilcoxon test & Mann-Whitney U test were applied to validate on the significant differences of the financial performance and the significant differenced from the total average scores of bank healthiness between Privat Bank and State-Owned Banks. The finding shows that NPL, LDR,ROA, and NIM have a significant difference before and during Covid-19 while total average scores of bank healthiness between Private Banks and State-Owned Bank and CAR Ratio have no significant differences.