Based on the results of the analysis of previous studies, it shows that learning styles affect student learning outcomes, as well as thinking styles. However, there is no data which dominantly affects learning outcomes, learning styles or thinking styles. Through this study will be studied the influence of learning styles on learning outcomes and thinking styles on learning outcomes. Besides, it also examines the styles of learning styles and thinking styles that most dominantly affect learning outcomes. This research uses a quantitative approach, survey methods and descriptive techniques. The target population is all high school students in the city of Banda Aceh, while the sample is 90 grade 2 students at State Senior High School 5 Banda Aceh. Data analysis used descriptive and inferential statistical tests with the Two-Way ANOVA technique. The results of the analysis show that there is a significant difference between the impact of learning styles and thinking styles on student learning outcomes taught by the Discovery Learning model. In addition, it was also found that visual, auditory and kinaesthetic learning styles predominantly affect learning outcomes compared to visual styles. As for the thinking style, it is found that the style of concrete sequential thinking style is more dominant in influencing learning outcomes compared to other styles of thinking style.