This research aims to test the Current Ratio (CR) and Debt to Asset Ratio (Dar) on the Net Profit Margin (NPM) at the company PT. Astra Otopart Tbk in 2011-2021. Data obtained through financial reports (https://www.astra-otoparts.com/) in the form of financial reports that have been prepared by PT. Astra Otopart Tbk. This research uses descriptive quantitative methods with a sample of 11 years, namely annual financial reports for the period 2011-2021. Data analysis used simple linear regression analysis and multiple linear regression using SPSS version 26 software. Hypothesis testing using T test, F test, and Determination test. The results showed that partially Current Ratio (CR) had a significant negative effect on Net profit margin (NPM) with a calculated value of tcount (-2.580) > ttable (-2.306) and has a significant value of 0.033 <0.05. Meanwhile, the Debt to Asset Ratio (DAR) is not has a significant effect on Net Profit Margin (NPM) with a calculated value of tcount (2.027) < ttable (2.307) and has a significant value of 0.077 > 0.05, simultaneously Current Ratio (CR), Debt to Total Asset Ratio (DAR), no there is a simultaneous influence on Net Profit Margin (NPM) with a significance value of 0.063 > 0.05 with a value of fcount (3.985) < ftable (4.459) at the company PT. Astra Otopart TBK.