The striker has not played since the end of August, when he bagged a goal in the Lights Blues’ 4-2 win over Queen of the South.
A calf injury has meant Miller has only featured four times since returning to Ibrox in the summer for his third stint with the club.
Boss Ally McCoist has purposely not rushed the 34-year-old back into action, but is now confident the former Scotland hitman is ready to resume playing duties.
He told the club’s official website: “Kenny is in good nick. He’s been back in full training with the squad and he’s been training very hard.
“He probably at a push could have been involved for the Livingston game (last weekend) but we decided against it.
“For the sake of one game when he could have another two-week break we thought it would be more beneficial to Kenny and indeed the team in the longer term to wait a little bit longer.
“His training has been very good and he should be available for the next game against Raith.
“We brought Kenny into the team for his experience, his goalscoring threat and indeed his all-round play.
“It would be difficult to argue we’ll certainly look more of a goal threat with Kenny Miller in the team.”