Đâu là sự khác biệt giữa warten và aufwarten ?Hãy thoải mái đưa ra các câu ví dụ nhé.

You will most likely almost never encounter "aufwarten" in my opinion. It is only used in very forma situations by very educated people. In written German you might see it once or twice.

aufwarten: to offer (food/drink/etc. to guests), to attend (a sick person/loved one/....)

warten: to wait

since warten is often used with "auf", there is indeed some ambiguity. In your sentence though, since "auf" is linked to a demonstrative expression ("da"), it is most likely a preposition and thus it is "warten auf", not "aufwarten"

Er wartet auf.
Er wartet auf .....

Even in this case you would understand that the first is "aufwarten", while the second sentence (or rather the part indicated with ....) would clarify "warten auf"