The Islamic Republic of Iran Taekwondo Federation (IRITF) Technical Committee made the decision to stay with Kamrani until at least the end of the year following a Tokyo 2020 debrief.
In the women's under-57kg, Nahid Kiani was eliminated at the first hurdle.
Azam Dorosti has been added to the women coaching staff.
The decisions were made in a session held in the federation’s headquarters on Saturday.
Iran men’s taekwondo coach Fariborz Asgari had previously extended his contract with the federation.