The results of documentary survey of 81 prescriptions of Hwangnyeonhaedok-tang and Hwangnyeonhaedok-tang blended ones introduced in Dongeuibogam in which there are 42 of prescriptions using Hwangnyeonhaedok-tang as main constituent and 39 of prescriptions using Hwangnyeonhaedok-tang as assistant constituent can be summarized as followings, 1. Hwangnyeonhaedok-tang blended prescriptions using Hwangnyeonhaedok-tang as main constituent are applied to 20 categories of disease such as 7 of external disease from the chapters of various dermatos is, various injury, tumor(16.6%), 5 of fire disease from the chapter of fire(12%), 5 of eye diseases from the chapter of eye(12%), 4 of disease originated from damage by coldness from the chapter of coldness(9%), etc. 2, It has been found that mainly considered causative agents in diseases, when making up Hwangnyeonhaedok-tang blended prescriptions using Hwangnyeonhaedok-tang as main constituent, are feverish toxin in internal organs, followed by exogenous damp and fever, feverish toxin from damage by coldness and more such as extravasated blood, damp toxin, lack of ki and blood, lack of yin, congestion, the seven passions, blood overflow and excess liquor and sex.