Suprasellar infundibulo-tuberal craniopharyngiomas “Type T” were the most important and difficult tumors with all types of CP, which also the most common type. In this chapter, we focused on the clinical manifestation, growth pattern and prognosis of this type of CP. With summarizing our data and previous literatures review, the advantage of frontobasal interhemispheric approach was depicted emphasizedly. Moreover, by analysis of the relationship between tumor and the third ventricular walls, the defect and merit of transnasal and transcranial approach were discussed as well. Finally, the injury of hypothalamic structures and the psychological evaluation were depicted.