The invention provides a flexible digital endoscope. The flexible digital endoscope is characterized in that a bending part capable of bending 180 degrees is arranged on the front end of an endoscope. The front end of the bending part is connected with a digital camera while the rear part is connected with an endoscope body and a handle. The bending part is formed by an upper connector, a lower connector, a plurality of joint pieces and intercalated discs connected in series. Two sides of each joint piece are provided with concave-convex structures, so that the joint pieces can be engaged and rotate. The bending part, the endoscope body and the handle are connected via a mechanical shutter release in series. When a shutter release key is pressed, an inner spring of the shutter release pushes forward the bending part to enable the bending part to bend 180 degrees. The flexible digital endoscope can be used for observation of the inner sides of holes, slots, cans, machines in different directions. The flexible digital endoscope has characteristics that the front part of the endoscope can be observed, and the bending part can be rotated from 0 to 180 degrees for rear part observation; the bending radius is small; the structure is simple; and single-hand operation can be realized.