The importance of logistic has been recognized through a lot of wars. Even though lots of logisticians have studied many methodologies to interpret the phenomena of logistic, many people have not recognized Logistics as a science domain. However, we think that logistic is a science. The purpose of this paper is to try to identify the possibility as a science of logistic. Second, it is to review the relationship of science related with Logistics. Finally, we define the Logistics and suggest the model of Logistics understanding.