The objective of this study is to figure out the influence of organizational citizenship behaviour (OCB) on performance at the Health Department in South Sulawesi Province. According to the South Sulawesi Provincial Health Office's Regional Apparatus Accountability, the realized performance achievement exceeded the predicted target of roughly 103.22% in 2020 during the COVID-19 pandemic. This study was a quantitative study with 73 respondents and a 10% tolerance using purposive and incidental sampling. Respondents completed a questionnaire with structured questions, and the data was processed by assessing the chi-square and contingency coefficients to determine the strength of correlation. It analyses OCB using the theory from Luthans to measure OCB which consists of Altruism, Conscientiousness, Civic Virtue, Courtesy, and Sportsmanship and uses the theory performance from Mathis and Jackson: quantity, quality, punctuality, attendance, and ability to cooperate. The result of the analysis resulted in that there is an Influence of organizational citizenship behaviour (OCB) on performance of p-value = 55.51 > 9.448 (α 0.05) and Coefficient Contingency C C = 0,80 with very strong categories.