Abstract: Research on biosensors involves extensive contents, multiple disciplines and their overlap. We review its status quo and characteristics with emphasis on immobilizedenzyme sensors. We also address the kind of bioactive components, immobilization strategy andits applications.We further present the main issues affecting practical application process of Chinese biosensorsenzyme variety scarcity, bad stability and less analytical performance of instruments.We then explore its development emphasis and directions from enzyme molecular elements, bioelectronics components, manufacture technology and market development of biosensors. We eventually present our suggestions for the emphasis on the standardization of new enzyme molecular elements and bioelectronics components and integration technology of analytical system.

Key words: analyzer, biosensor, enzyme electrode, biosensor market