This experiment aimed to this paper examines the relationship between the IT subjects and the STEM subjectswhich can affect the academic performance of the IT students at the tertiary level. It was found out that IT students should have astrong foundation in there in the STEM subjects.To develop their cognitive skillsto solve and analyze complex problems in Math and Science. And be able to understand and construct the correct syntax and grammar in making system. It was found out that STEm subjects are highly correlated to the IT subjects.