Biochip is the best of its kind since middle of the 90 s of the 20 th century

and it has been the hotspot of science study.The basic concept and main classify are introduced.Application in gene sequence

genetic expression

gene mutation and pleiomorphy

examine of transgenic food

microbe in food

medicine and vaccine study are also addressed.The nice foreground of biochip in traditional Chinese medicine

agriculture

environment protect

judicatory identify and gene weapon are forecasted.