Disclosed is a cleaning wick for a channel of a medical instrument, particularly an endoscope. Said cleaning wick supports at least one, preferably several wiping elements (9) on the elongate, flexible wick (1) that can be inserted into the instrument channel. The wiping elements (9) are designed as flock coating that adheres to the wick (1) in a section of the length thereof. Unflocked zones (11) that are left between the wiping elements (9) absorb substances which are to be discharged from the instrument channel during the cleaning process. An unflocked final region (13) located at the longitudinal ends (3, 5) of the wick (1) makes it easier to introduce the cleaning wick into the instrument channel.