Sport Statistics is an important applied subject in physical education field. Traditional teaching cannot meet its teaching demand. As a result, teachers are difficult in teaching and students are difficult in learning. Thus, it is very necessary to combine Sport Statistics with network teaching. In this study, the students of sports specialty were chosen as the objects of study, and “double-subject” teaching mode was used to teach Sport Statistics. Sport Statistics was combined with network course, and a new Web-based online courseware making platform system was applied. Besides, a network course quality evaluation model was constructed, and the evaluation was conducted from 7 aspects: teaching content U1, teaching design U2, course resource U3, page design U4, technical force U5, teacher as the subject U6 and user experience U7. It is found that “double-subject” teaching mode can significantly improve the teaching effect of Sport Statistics, motivate students’ learning interest, promote students’ oral expression ability, generalization and summarization ability, and self-learning ability, and enhance students’ ability to analyze and solve problems.