The phosphoinositide-3 kinase (PI3K)/protein kinase B (PKB/AKT)/mammalian target of rapamycin (mTOR) pathway is asso-ciated with cell growth, proliferation, differentiation, apoptosis and metabolism. The abnormalities of this signal pathway are found in various malignant tumors. This pathway has also been investigated as an anti-tumor target. Recently, novel inhibitors have been stud-ied in clinical trials of lymphoma. This review summarizes the activation status of the PI3K/AKT/mTOR pathway and its use for targeted therapy of lymphoma.