Born in Rimini, Emilia–Romagna, Martini started his career at Veneto club Padova.
That season he scored 5 goals, as the team fourth scorer behind Francesco Lodi, Éder and Felice Evacuo.
Martini only made handful appearances in 2008–09 Serie B, and in January 2019 left for Reggiana.
[9] In January 2012 he was signed by Pro Vercelli in temporary deal with Stefano Santoni moved to opposite direction.
[16] On 24 January 2020, Alessandria hired new head coach, Angelo Gregucci, finishing Martini's caretaker stint.