Background: Integrated palliative care (IPC) is regarded as the standard therapy for advanced cancer. We conduct a comprehensive analysis to evaluate current evidence for the effectiveness of IPC on quality of life (QoL) and psychological distress among patients with advanced cancer. Differences in effectiveness are explored regarding various types of IPC and the follow-up time/period. Methods: A systematic literature search of PubMed, PsycINFO, EMBASE, CINAHL, and Cochrane Central Register of Controlled Trials was conducted. We identified 12 randomized controlled trials, which included 2,356 participants, that were pooled using a random-effects meta-analysis.Results: Our results suggested no significant difference between the three different models of IPC and conventional treatment on overall QoL (SMD =0.06, 95% CI: -0.06 to 0.17, P=0.318). However, there was a long-lasting favorable effect of IPC on overall QoL throughout the follow-up period of 12 to 18 weeks (SMD =0.