To the limitation of the description and the reasoning for complicated and uncertain temporal knowledge, the
intuitionistic fuzzy uncertain temporal interzone and temporal interval are defined, and the temporal reasoning forecast
model of the unknown time and reasoning method based on intuitionistic fuzzy temporal logic(IFTL) are proposed, by
using which, the reasoning precision matter is solved better. The method of testing the consistency of the knowledge model
and the temporal nets based on the intuitionistic fuzzy serried degree is developed. Finally, a classical instance shows the
effectiveness and superiority of the proposed method.