The invention discloses a medicine which is prepared by the Chinese herbs with the functions of clearing away the heart fire and eliminating phlegm, sedation and decompression and is used for treating high blood pressure. The medicine is a refined external-use compound paste prepared by the effective ingredients of Radix Stephaniae Tetrandrae, Radix Astragali, Radix Rehmanniae Preparata, Rhizoma Diosscoreae, Fructus Corni, Rhizoma Alismatis, Radix Paeoniae Alba, Poria, Cortex Moutan, Radix Salviae Miltiorrhizae and Euonymus alatus. The invention has evident effect on decompression, sedation and diuresis. The paste body of the plaster is fine, soft and smooth, easy to be coated on cloth and uneasy to melt, easy for carrying and use because of small size, and good for quick recovery of focus. The poultice has stable drug property and has the characteristics of quick percutaneous absorption, good ventilation property and gradual drug releasing. Compared with the oral preparation, the invention has the advantages of no liver-intestines first-filter action, no influence from gastrointestinal degradation and high bioavailability. Compared with injection, the invention has the advantages of convenient use and no pain. Compared with ointment, the invention has the advantages of accurate dose and fixed absorption area. Compared with black plaster and sticking plaster, the invention has the advantages of no sensibility on skin, no pollution to clothes, long effect, percutaneous absorption and convenient carrying and use.