Abdi was on loan to Tractor in the 2023-24 season, helping the team finish fourth in the league but has now made the move permanent.
Abdi returned to Persepolis in the summer and participated in the training but left the team very soon.
The 25-year-old forward joins Alireza Beiranvand, Danial Esmaeilifar and Mehdi Torabi as those who have swapped the red of Persepolis for the red of Tractor ahead of the new season, which kicks off on Thursday.