Smart phones, in recent years has become a trend, are like portable computers in their arithmeticlogic capability, and multi-media capability by connecting to the Internet. Most people take advantage of the conveniences of smart phone devices to do their personal tasks or work. However, since Internet downloading provides massive quantities of software for various domains, lawbreakers can also utilize the convenience of smart phone devices to commit crimes, Causing many security problems.The guidelines on cell phone forensics procedure of the National Institute of Standards and Technology (NIST) corresponding to the digital evidence forensics standard operating procedure model (Concept, Preparation, Operation, Report) of the four dimensions proposed by Lin (2008), and smart phone forensics tool specifications by NIST's requirements, mapping assessment of the operational phase of DEFSOP, are discussed. Furthermore, this paper provide integrated digital evidence forensics standard operating procedure in the smart phone for verifying with the analytic questionnaire by the Delphi expert survey. Based on the analytic results, we expect this procedure to improve our current procedures and to apply in our authorities.