In this paper, via analysis a education method of chapter for computer basic knowledge, whether educational computer game one of various education methods is able to extend computer basic knowledge, we taught and analyzed applied result, then we wanted to find possibility that educational computer games is possible to be contributed in computer education of elementary school. For extending of computer literacy of student, we did computer class with educational game. As a result, we could got a more effective outcome that student felt a fun and participated in class more active than normal class. Therefore, If we will use educational computer games to aim to raise abilities of computer literacy and problem solving that will be contributed in education which is coincided with knowledge basis society of informational period.