This study aimed to find out the relationship between teacher's questioning style with the indicators: focused questioning, challenging questions, stretching questions, probing questions, and learning behavior of students with the indicators: pessimistic behavior, optimistic behavior, trusting behavior, envious behavior. The study respondents were grade twelve senior high school students of STI College Tagum in the school year 2020-2021. It employed the descriptive correlational research method and utilized Mean and Pearson correlation (r) as the statistical tools. The study results revealed that the level of teachers’ questioning style under the four indicators is all high. This means that students experience the listed statements oftentimes. With regards to the level of the learning behavior of grade twelve students, Pessimistic and envious behavior marked as moderate, which means that the students were still undecided that they possessed this kind of behavior; Optimistic and Trusting behavior marked as high, which means that the students agree that they possessed this kind of behavior. This revealed that teachers’ questioning styles have a significant relationship to the learning behaviors of Grade twelve Senior High School Students during Online Class and interpreted having a strong positive linear relationship. As a result, it is recommended that teachers ask questions that belong to HOTS (Higher Order Thinking Skills)that seek answers with the full use of the student's ability, imparting knowledge and understanding beyond what is expected for them to implement