Open access emerged on a large scale in the late 1990s. Through the review of relevant research about open access at home and abroad, it is found that whether a series of information system research models like TAM (technology acceptance models) can fully explain researchers' behavior under the open access environment is questionable. In order to better understand the logic of academic resource supply behavior of researchers under the OA journal environment, grounded theory was used in this study to obtain the influencing factors model of researchers' academic resource supply behavior on the basis of the interview data. On this basis, the influence of factors such as perceived risk, perceived cost, overview of OA journals, open access concepts, community guidance, performance expectations, and journal preferences on the academic resource supply behavior of researchers in the OA journal environment is discussed.