Can i change your 8 week old puppys food to dry?

It is unclear from this question what the puppy is currently eating. A eight week old puppy should be able to eat dry food. Any change in the diet should be made gradually. If you are changing from a wet food to dry you should mix them or have both available and gradually remove the wet food. If you are weening the puppy from milk you should start with dry food soaked in water or milk and gradually reduce the liquid.