Kane has scored 24 goals for Spurs so far this season. But Terry insists he still has to prove he's no flash in the pan.
Terry said: "He has got to be able to do that year after year - and for England I hope he does.
"It is great to see young players coming through and getting their opportunities and staying in the squad so if he keeps scoring there's no reason why he can't stay in.
"He is a very good player. His movement is fantastic and he is in great goal-scoring form. But there's still a long way to go."
Chelsea meet Spurs in the Capital One Cup final tomorrow.