disclosed are a process and an apparatus for improving tobacco raw material . the process mainly comprises performing an extraction from at least one of tobacco leafs , tobacco flakes , tobacco powder , stalks and cut stems by mixed solvents , conducting a solid - liquid separation for the tobacco raw material , applying the extract liquor of tobacco leaves , flakes and cuts for manufacturing tobacco extract and that of stalks and cut stems for manufacturing fertilizer , diluting and mixing a given amount of tobacco aqueous extract and ethanol extract and removing harmful components so as to get feed liquid , backfilling the feed liquid to the tobacco raw material , and drying the tobacco raw material to a certain dryness to obtain the products . the apparatus is a system composed of a plurality of interconnected independent devices such as extractor , solid - liquid separator , a feed liquid backfiller , etc .