The difference between Persians and Arabs is mainly reflected in the language family and nationality.

In terms of language family, Persia belongs to Indo-European language family and Arabs belong to Semitic language family, so the blood relationship between Persians and Europeans is much closer than that of Arabs. Ethnically, today's Iran is mainly Persian, and Saudi Arabia and other countries are mainly Arabs.

Persians and Arabs still have some similarities, that is, they are both Xinyang Islam. Persians are the main ethnic groups in West Asia, which can also be called barrs people. Arabs belong to a branch of Semitic people, who refer to Arabic-speaking residents in West Asia and North Africa. Arabs are a group with the same language, not a blood group of a nation.

Arabs are people who live in the Arab world. The "Arab world" is considered to be located in North Africa and West Asia; Persians are peoples living in the Iranian cultural continent, including the Iranian Plateau, the Indus River in Pakistan in the east and Turkey in the west. It also spread northward from Central Asia to the Caucasus and finally southward to the Persian Gulf. The ancestors of Arabs can be traced back to the original inhabitants of Arab tribes living in the Syrian desert and Arabian Peninsula. Persians are part of the Indo-European Iranian family.