The season featured 11 teams from the 2018–19 Azadegan League, two new teams relegated from the 2018–19 Persian Gulf Pro League: Sepidrood and Esteghlal Khuzestan and two new teams promoted from the 2018–19 League 2: Khooshe Talaei Saveh, Arman Gohar Sirjan and Nirooye Zamini as champion, runner-up and third placed team respectively.
Damash replaced Karoon Arvand Khorramshahr, while Elmoadab Tabriz replaced Shahrdari Tabriz.
[1] The league started on 17 August 2019 and was scheduled to end in April 2020 but in March 2020 it was suspended due to COVID-19 pandemic in Iran until June 2020.
Hamid Kazemi of Havadar emerged as the league's top scorer with 17 goals.
Updated to match(es) played on 23 September 2020.