A treatment tool for endoscope includes a pair of forceps members supported so as to be relatively movable by a rotation shaft, an operation section for performing opening/close operations of the forceps members, and an operation wire for connecting the forceps members to the operation section, wherein the operation section has an operation section main body, a first operation member to which the operation wire is connected and which is slideably attached to the operation section main body, a second operation member which is slideably attached to the first operation member, a force adjustment member which is attached to the second operation member and is compressed by the second operation member is slid to the first operation member.
