The invention discloses a 
perhexiline injection liquid and a preparation method thereof, wherein the 
perhexiline injection liquid is prepared from radix salviae miltiorrhizae, 
ligusticum chuanxiong, 
sodium metabisulfite, 
sodium calcium edetate, HS-15 and water for injection. The preparation method of the 
perhexiline injection liquid comprises the steps: adding water to radix salviae miltiorrhizae and 
ligusticum chuanxiong, decocting, filtering the decoction, concentrating, carrying out 
precipitation treatment for 2 times with 
ethanol, filtering, concentrating the filtrate, diluting with water for injection, regulating the pH value with dilute 
hydrochloric acid, refrigerating, filtering, regulating the pH value with a 
sodium hydroxide solution, concentrating the filtrate, refrigerating, and filtering to obtain a solution 1; taking 100 ml of water for injection, adding 
sodium calcium edetate and 
sodium metabisulfite, stirring until being dissolved, and filtering with 
activated carbon to obtain a solution 2; adding the HS-15 into 100 ml of water for injection, evenly stirring to obtain a solution 3; and merging the three solutions, filtering, regulating the pH value, adding water for injection to the full amount, filling and sealing, and thus obtaining the product. With adopting of the new prescription and process, the perhexiline injection liquid has an outstanding 
advantage of greatly enhancing the medication security of the perhexiline injection liquid.