This research used quantitative research, using instruments in the form of hard work questionnaires and multiple-choice questions of physics material. Meanwhile, the purpose of this study is to influence the character of hard work on student achievement. The subjects of this study were students of class XII MIPA at SMA Negeri 1 Jambi City in the 2020/2021 academic year. This study uses a survey method. The data analysis technique in this study used the SPSS program by testing normality, correlation, and simple linear regression. It can be seen that the significance results in the hard work trial of physics learning outcomes obtained 0.000. From these results it can be seen that 0.000 <0.05, which means that the two variables are correlated. Then, in terms of the Pearson correlation, the result is 0.927, which means that the degree of relationship or the value of the Pearson correlation is in the very strong category. That is, the level of student hard work in physics is very related and influences student learning outcomes. Then, a simple linear regression test was also performed with the results of the regression equation analysis Y =-3.33 + 0.943 X. tcalc = 15.235 and p-value = 0.000 / 2 = 0.000 <0.05. The results showed that there was an influence between the character of hard work on student learning outcomes, especially in the cognitive aspects.