It is hard to deny that genetic engineering for whatever purpose may cause some bad influences for the society when people develop it in incorrect way, and such a fact leads impressionable people to generate the opinion that developing genetic engineering has more disadvantages than advantages, as the results which cause by wrong behaviours could throw society into chaos. However, such a statement suffers from both logical and factual fallacies, and it should be examined meticulously. As far as national status, survival of mankind and feasibility are concerned, I strongly hold that genetic engineering in medicine and agriculture will bring us more benefits in the long run.