A ccording to actuality of boiler control, putting forward fuzy control rule of paramete self-adaptability, designing the self-adaptability fuzz pid control system . this system gets over disadvantage of no precision and difficulting to adjust parameter for using tradition control methods . this article designes cascade pidcontrol system and self-adaptability fuzzy pid three impulse control system for 根據鍋爐控制現狀,提出了參數自整定模糊控制規則,設計了二輸入三輸出自適應模糊pid控制器對汽包水位進行控制,克服了傳統控制方式的控制效果不精確和參數難以調整等缺點。