A flexible tube for an endoscope and an endoscope device are provided. According to the present invention, a flexible tube for an endoscope is included in an insertion portion of the endoscope to be inserted into a body cavity and the flexible tube for the endoscope includes a bending portion provided at a distal end side and configured to perform a bending operation corresponding to an operation of an operator, and a flexible tube portion having a distal end and a proximal end and the distal end is connected to a proximal end side of the bending portion. The bending portion has a region that is bent at a first curvature radius when the bending portion is maximally bent, and at the distal end side of the flexible tube portion, a region that is set to be bent at a second curvature radius smaller than the first curvature radius when the bending portion is passively bent by a predetermined force quantity is provided. Accordingly, resistance which occurs when the bending portion is passing through the intestine bending portion is suppressed and an insertion performance of the insertion portion is increased. Thus, patients are less burdened and less painful.