A cable guide assembly is used in a winch device having a rotatable cable shaft and a cable wound on the cable shaft. The cable guide assembly includes a support unit, a holding unit, and a coupling unit. The support unit includes a support member formed with a cable hole for extension of the cable therethrough, and two roller rods disposed rotatably within the support member and disposed at opposite sides of the cable. Each roller rod has a portion exposed from the cable hole of the support member. The holding unit is disposed at a side of the support unit opposite to the cable shaft and is used for stretching taut a portion of the cable between the cable shaft and the holding unit. The coupling unit interconnects the holding unit and the support member.