in the era of technology has greatly advanced, mobile phones have become a necessity and a means of communicating with each other. even though they are separated by a considerable distance, no longer need to spend the time to meet physically. This reason also makes the phone as the primary choice for criminals to communicate. communication used a variety of purposes, such as positive or negative. In 2010, digital forensic analyst team has examined such as network Puslabfor drugs, pornography, gambling, corruption, defamation, fraud, bribery, and others. Of these, as many as 118 types of mobile phones in the form of evidence. It means that offenders still consider mobile phones as a primary communication tool. Digital forensic analysts and investigators, it shall be able to anticipate these things, so that when there is evidence of mobile phone, which was confiscated from criminals, can be checked properly in accordance with the basic principles of digital forensics. This study uses DFIF (Digital Forensic Investigation Framework) smartphone investigation by searching for evidence of a conversation via text message. the results of the investigation evidence to prove the offender information, the information will be presented in the form of a forensic report which will be used as evidence in court.