This study was established the foundation with the expressing method on the context awareness platform by using Sensor of the Smart Phone(SP). The data were used for expressing emotions with different SP. The emotion of SP was influenced with the changing of the several variables generating real time and were determined by interacting a mix of emotion depending on the intensity and causality. First, the SP platform was analyzed, which constituted the situational awareness process that can express emotions. Second, a mathematical model for expressing emotion through the SP event design. Third, when SP have to acknowledge, assess, and respond to the current situation, emotional system is the situation immediately. The user's SP has sense as digitalized data and analysis of data on various sensors. In the point of this article, it was limited that building a two-dimensional table was established by cognitive evaluation, internal emotional state of structural regularities, and using the POMDP model number of the emotional state. In order to influence the emotional perception, the range of influence was limited. Using the tree structure of the way HSVI, the computed time was minimal for matrix operations. Last, the compensation policies were interlocked with the blood type. Designed in advance for optimum algorithms derive scenarios. Using the proposed processing methods, digitized data were applied with SP sensor information. To determine whether the right set of circumstances in order to express appropriate emotion, it was established with the numerical system.