The present invention provides a method for screening a diabetes treating agent comprising the following steps: (a) preparing cells inside a culture medium (b) treating the culture medium with a test substance (c) treating the result of step (b) with a glucose derivative which is not metabolized and (d) measuring the glucose derivative which has flowed into the cells, wherein the test substance is determined to be a diabetes treating agent if the test substance accelerates uptake of the glucose derivative in the cells. Therefore, the described pharmaceutical composition, including a triazin-based compound as an active ingredient, can be useful for application in preventing or treating diabetes.
