Cipriani returns to the Aviva Premiership following two seasons with the Australian Melbourne Rebels outfit.
"I had always intended to return here after two years," said Cipriani. "I had the possibility of one more year [with the Rebels], but after weighing things up decided to return."
The fly-half added that he has already held talks with England head coach Stuart Lancaster.
"I have spoken to Stuart Lancaster and being involved in the 2015 World Cup is a long-term goal but I have to focus on this season. Sale have a real chance of finishing in the top four."
Cipriani could make his Sale debut in Saturday's friendly match against the Glasgow Warriors.