At present, drug crimes in the world are very destructive and are considered a concern for all countries. Iran is also one of the countries fighting against these crimes, which is exposed to this harm and the spread of drugs and related crimes. In the present study, which has been conducted with an analytical-descriptive method, the death penalty has been investigated as one of the main punishments in the field of drug crimes, and by examining the principles and rules of jurisprudence, it has been concluded that the death penalty in Iranian law as a hadd punishment for repeat offenses or cases of committing drug crimes with weapons, which is based on the jurisprudential foundations of Moharebeh. It can be considered as one of the cases of Hadd or in the Hadd sentence, and in some cases, taking into account the interest of the society, the ruler can impose the death penalty on the offender, while if the death penalty is of a ta'zir nature, it cannot be considered in drug crimes, and more reflection and precision are needed, and in this regard, punishments must be meted out. as an effective alternative punishment and strategies for making this punishment more effective