ZH rat rod fatigue tester is transferred by the major domestic institutions and research units require the development and production of products, some domestic manufacturers are doing scotch type mice, the listing of this product fill a bigger domestic Blank mouse, this product is similar foreign products and the "pharmacological experiments methodology" scotch test apparatus according to improvements completed, a better experimental, anti-fatigue drug screening and identification of the ideal instrument for detection. The instrument can do fatigue experiments, skeletal muscle relaxation experiments, CNS inhibition experiments, as well as other required test to detect movement of drug action, such as to affect the toxicity of athletic ability, the lack of impact on the athletic ability of a substance the body, mind cerebral vascular drugs on athletic ability and so on. The instrument can be developed using the basic principles and the basic functions of the multi-directional