This study aims to determine the effect of the level of solvency on the claim ratio in insurance companies listed on the Indonesia Stock Exchange. The variables in this study are the level of solvency as the independent variable (X) measured in percent units and the claim ratio as the dependent variable (Y) measured in percent units. The population is all the financial reports of insurance companies listed on the Indonesia Stock Exchange and a sample of 3 companies for five years, from 2020-2023. Data collection is done by documentation and observation techniques. The collected data is processed using solvency and claim ratio calculation formulas, simple linear regression analysis techniques, and product-moment correlation. Based on the results of a simple linear regression analysis, the equation Ŷ = 47.262+0.033X means that a constant value of 47.262 is the percentage of the claim ratio achieved regardless of the high or low level of solvency or, in other words, if the solvency level (X) = 0 then the percentage of claims ratio (Y) is constantly at 47.262 percent. While the value of the regression coefficient is 0.033, which means that for every 1 percent increase in the solvency level (X), there will be an increase in the claim ratio (Y) of 0.033 percent. The results of the product-moment correlation analysis obtained a value of r = 0.498 which means that the level of solvency has a moderate relationship to the claim ratio of insurance companies listed on the Indonesia Stock Exchange. While the coefficient of determination (r2) = 0.248 or 24.8 percent, which means that the effect of the level of solvency on the claim ratio is 24.8 percent. While the remaining 75.2 percent (100% - r2) is influenced by other factors not included in this study. So that the hypothesis put forward "Allegedly that the level of solvency has a significant effect on the claim ratio in insurance companies listed on the Indonesia Stock Exchange" was declared rejected.