The 26-year-old took 28 windows for the club in a top of the line rivalry and a T20 for a season at Chelmsford in 2017.
It will be accessible for eight gathering amusements before it satisfies its duties in the Caribbean Premier League.
“Mo is a standout amongst the most energizing bowling gifts on the planet and I’m pleased he’ll be returning with us,” Essex mentor Anthony McGrath said.
“He can dispatch boli at a quick pace while moving the ball in the two bearings and everybody has perceived how decimating the ball can be.”
Amir will be accessible for the Essex opening match against Middlesex on July 18, however will at that point miss his next two amusements, against Surrey and Kent Spitfires, because of family responsibilities.
His last amusement with the Eagles will be against Glamorgan on August sixteenth.
Amir was avoided from playing cricket for a long time in the wake of being discovered blameworthy of fixing England’s place in Lord’s in 2010.
He has played 36 occasions, 49 worldwide diversions daily and 42 T20 recreations for his nation.
Australian player Adam Zampa will likewise be a remote player for Essex in the T20 Blast this late spring.