Abstract: Isatis indigtica fort was taken for experimental material，and improved variety was chosen to carry out an investigation into the high yield culture technology of Isatis indigtica fort. The result indicated that the optical soil condition is light soil or sandy soil which is loosen,good in drainage and plentiful humus；the optical growth temperature is 18~23℃ on day，13~18℃ at night，soil temperature is 18℃；the optical soil water is better kept at 60%~80% and air humidity is 80%~90%；the optical proportion of fertilizer（N,P,K）is 2.5:1:4.