Live specimen of various body fluid and secretion can be observed directly, pathogen can be inspected quickly and exactly without staining and culture. Convenient operation. Application of large screen display avoids inconvenience and tiredness of using ordinary microscope over a ling period of time. It enables many people to observe simultaneously. It is suited to consultation, teaching, scientific research and demonstration. The product can print automatically reports of sub-health examina-tion and food therapy. It can modify reports about all kind of body fluid and secretions. This instrument supports various freely assorted searching and inquiring. The customers also can create, modify and store their own database modul of the Food Health Guide Storeroom. Multimedia image base and the food health guide storeroom are easy to learn and compare.