施身法（藏语：.mw-parser-output .uchen{font-family:"Qomolangma-Dunhuang","Qomolangma-Uchen Sarchen","Qomolangma-Uchen Sarchung","Qomolangma-Uchen Suring","Qomolangma-Uchen Sutung","Qomolangma-Title","Qomolangma-Subtitle","Qomolangma-Woodblock","DDC Uchen","DDC Rinzin",Kailash,"BabelStone Tibetan",Jomolhari,"TCRC Youtso Unicode","Tibetan Machine Uni",Wangdi29,"Noto Sans Tibetan","Microsoft Himalaya"}.mw-parser-output .ume{font-family:"Qomolangma-Betsu","Qomolangma-Chuyig","Qomolangma-Drutsa","Qomolangma-Edict","Qomolangma-Tsumachu","Qomolangma-Tsuring","Qomolangma-Tsutong","TibetanSambhotaYigchung","TibetanTsugRing","TibetanYigchung"}གཅོད，威利：gcod，THL：Chöd），佛教术语，是一种禅定练习的方法，起源于大乘佛教，盛行在密宗与藏传佛教中。这种修行法来自于般若经中，是结合了中观学派与密宗的修行方法。

施身法，在藏文中是布施、服务的意思。它来自于梵文छेद साधना（cheda-sādhan）的藏文翻译གཅོད་སྒྲུབ་ཐབས་（gcod sgrub thabs）的简称，意思为割截身体的修行（梵语：साधन，转写：sādhanā；藏语：སྒྲུབ་ཐབས་，威利：sgrub thabs）。

在大乘佛教经典中，佛陀在过去世进行菩萨修行时，曾经以自己的身体来布施给众生。佛教修行者效法佛陀的行为，在禅定练习中，想像切割自己的身体，布施给一切众生。

来自佛学中舍身喂虎、割肉饲鹰救鸽的说法，在尸陀林天葬传统中也提到亡者身体归于自然，应布施给众生。