Medical endoscope bending control mechanism, comprising a bending part, a bending drive unit, and a handwheel adjustment apparatus. The bending part is provided with an outer sleeve (5), a bending component (2), and fixed barrels (3 and 4). The outer sleeve (5) is sleeved on the bending component (2). The fixed barrels (3 and 4) are fixedly connected to the front extremity of the bending component (2) and are provided with the bending drive unit. The bending drive unit comprises at least four control cables (7) and control balls (6). The fixed barrels (3 and 4) are provided in the circumferential directions thereof with connecting grooves (8) that correspond to the control cables (7). The control balls (6) at extremities of the control cables (7) respectively are arranged within the connecting grooves (8). The handwheel adjustment apparatus and the control cables (7) are in a drive connection. The handwheel adjustment apparatus also is provided with two sets of limiting and self-locking mechanisms. The bending component (2) employs a variable pitch bending component (2), implements free bending via a control mechanism provided internally, and then implements resetting via the variable pitch bending component (2), thus providing bending and resetting effects, reducing high costs throughout a surgical procedure, and implementing disposable use, high control precision, and great control effects.Linvention concerne un mécanisme de commande flexible dun endoscope médical, comprenant une partie flexible, une unité dactionnement flexible et un appareil dajustement à volant à main. La partie flexible est équipée dun manchon externe (5), dun élément flexible (2) et de barillets fixes (3 et 4). Le manchon externe (5) est emmanché sur lélément flexible (2). Les barillets fixes (3 et 4) sont reliés à demeure à lextrémité frontale de lélément flexible (2) et sont munis de lunité dactionnement flexible. Lunité dactionnement flexible comprend au moins quatre câbles de commande (7)
