The computer technology has advanced profoundly that the application seems to have no limit. Equipped with programming, our research team has created programs that could be used practically in the field of chemistry. The purpose of this paper is not on the making useful tools for science, but on using analytic tools based on computer programming to find additional evidence that supports a theory. The Suport Vector Machine (also known as its acronym, SVM) is used frequently in genetic analysis to find certain patterns in DNA sequence. This paper deals with pattern similarity between rRNA of mitochondria and that of alphaproteobacteria, which is believed to be the ancestor of the mitochondria. This theory, also known as "endosymbiotic theory" has a variety of evidences and has accepted as authentic. The pattern similarity between the two organisms' DNA sequence, which is the result of the paper would consolidate the evolutionary endosymbiosis.