Posh will travel to Sky Bet League Two side Colchester United during pre-season.
Peterborough United will travel to the JobServe Community Stadium to face Colchester United on Tuesday 21st July (7.45pm) with ticket details set to be released in due course.
The two sides met in pre-season last year with the game ending in a 2-2 draw. Sam Hughes and Declan Frith were on target for Posh that day.
The U's are managed by Danny Cowley and finished 12th in Sky Bet League Two last term.