Computer simulation can offer an open exploring learning environment for students. Therefore, it is usually considered as an instrument for the scientifi c discovery learning. Based upon the recent research, we analyzed the components of scientifi c discovery learning. Moreover, according to the teaching experience and the earlier investigations, we took computer simulation as an exploring tool for middle school students' scientifi c discovery learning in their physics education. We designed an integrated mode, which could integrate computer simulation into experiments in the laboratory. Compared to the scientifi c discovery learning mode that is based upon the real-life experience, the results of the experimental study were as follows: (1) the integrated mode of computer simulation in scientifi c discovery learning showed very signifi cant improved effects upon the students' mastery of the principle knowledge; (2) the integrated mode of computer simulation in scientifi c discovery learning showed no signifi cant improved effects upon the students' intuitional understanding; (3) the integrated model of computer simulation into scientifi c discovery learning showed signifi cant improved effects upon the students' mastery of the fl exible application of the knowledge; (4) the students' achievement of physics had very signifi cant effects upon their scientifi c discovery learning; (5) the integrated mode could make better use of the advantages of both the