The utility model provides a cable winder and vehicle -mounted movable type check out test set. This cable winder includes: the support frame, reel, reel rotation support on the support frame and cable winding on the reel, release cable when this reel is rotatory along the first direction is set to the reel, as this reel winding cable during along the rotation of the second orientation with an opposite direction, first guide part, the setting of first guide part one side of reel and first guide entry, first guide export have and be located first guide entry and first guide export between guide channel for when the reel was rotatory along the second orientation, first guide entry entering guide channel was followed to the cable, and the mode coiling of personally submitting predetermined rolling contained angle with the radial center with the reel after drawing through first guide export is on the reel. Can realize simplifying cable winder's structure, make the cable to receive and release the operation more convenient.