This paper proposes an approach for identifying the cooperation leader in a collaborative learning team. The cooperation leader is the member potentially obtaining the effectively cooperation from other team members. The concept of information theory, the measure of uncertainty, is applied in this paper in order to identify the cooperation leader candidate. Because the cooperation leader is likely to have equally intensive connections with other members, the cooperation leader thus should have the maximum of the measure of uncertainty. That means it is difficult to predict that which members among all other members will respond to the cooperation leader, because all of them are likely to have equal chances to response. Based on the proposed assumptions, the experiments with two pilot studies are conducted. The leadership perceptions observed from team members are compared with the computed measure of uncertainty. The results show that the measure of uncertainty will be able to represent the leadership perceptions from team members. However, more experiment for the future work is still required.