The infallibility of Prophet Adam (pbuh) is one of the challenging topics in the sciences of interpretation and theology in such a way that the appearance of verses and narrations has caused some people to think that Prophet Adam (pbuh) disobeyed the prohibition of genealogy and did not have infallibility. . This research, with the method of collecting and analyzing information along with the comparison of votes, seeks to prove the infallibility of Hazrat Adam (pbuh) through the method of interpreting the Qur'an to the Qur'an. Based on this, first the general verses indicating the infallibility of Prophet Adam (pbuh) will be stated, and then the evidence of the prohibition of genealogy, which does not contradict with infallibility, will be analyzed based on the method of verse-by-verse interpretation. In the final step, the important words of the infallibility of Hazrat Adam (pbuh) are also analyzed based on the mentioned interpretation method. Among the results of its research that: 1- The verses "La Yanala Ahdi Al-Zalamiin" and "Fiansakhu Allah Ma Yulqi Al-Shaitan" generally indicate the infallibility of Prophet Adam (pbuh). 2- Among the reasons for the prohibition of genealogy, only one reason does not imply that the prohibition is directive, and the rest of the reasons are complete. 3- According to the method of interpretation of the Qur'an, none of the words oppression, rebellion, rebellion, repentance, and damage contradicts the infallibility of Adam (pbuh).