To assess the efficacy and safety of ALK inhibitors combined with VBL in pediatric relapsed/refractory (r/r) ALK+ ALCL....ALK inhibitors included crizotinib(CZ), alectinib(AL) and ceritinib(CER)....After 1st cycle of treatments, 62.9%(17/26) achieved comlpele remission(CR) without measurable tumors and ALK gene transcription, no progressed cases.... ALK inhibitors combined with VBL may rapidly induce the tumor remission of r/r ALK+ALCL and the tolerance is good.