The laboratory is one of the important medical technology departments, which can be divided into: emergency inspection area, specimen processing area, biochemical immunity area, blood analysis area, bacteria laboratory, PCR laboratory, genetic laboratory, radiation immunity room and so on. It is divided into preparation room, culture (inoculation) room, conventional bacteria room and clean laboratory, and the clean laboratory should meet the standards of 10,000 clean rooms. In the planning of the laboratory, attention should be paid to the separation of the laboratory from the external environment, the separation of the light pollution area and the heavy pollution area from the clean area in the laboratory, and the bacteria room of the laboratory should be at the far end of the laboratory.