Objective: To investigate the four property and five tastes in the properties. Method: Using Chinese medicine herb properties and clinical drug application theory

by means of the literature data and mining method

summarize the four property and five tastes of the plant parasitic Yi medicine in the literature of Yi medicine books which still exist. Result: Constituent ratio of the four property

warm natured>cold natured=cool natured>‘ping’ natured>hot natured. Constituent ratio of the five tastes

bitter>astringent>arid=acid>sweet=thin>saline. From the perspective of combination

7 medicines have the taste of bitter combining with astringent

there is 1 medicine has the taste of bitter combining with acrid

acid combing with bitter

acid combing with astringent respectively;there is 1 medicine has the tastes of acid combining with bitter and astringent

bitter combing with acrid and astringent respectively. Conclusion: Four property:the number of warm natured drugs is most in four property

the following is cold or cool

‘ping’ is least and no hot natured drugs.Five tastes:five taste has single

two taste and three flavor combinations

including single flavor with bitter most

no saline medicine. Most in two tastes is bitter combing with astringent. Three flavor combinations have acid bitter astringent and bitter acrid astringent.