Abstract: An auxiliary tool clip of a jack. At a predetermined position of a shroud of the jack is installed with a positioning seat. The elastic clip is secured to the positioning seat and the shroud by a positioning shaft. A surface of the positioning seat is distributed with positioning holes. A bottom of the elastic clip is installed with at least one positioning nose. When the positioning nose rotates, the positioning nose moves along the positioning holes on the surface of the positioning seat. The positioning shaft penetrates through the elastic clip, positioning seat and shroud so as to be movably locked. Thereby, an elastic clip is pivotally installed thereon, so that the clip can be used to clip a flashlight, a tire pressure meter or other auxiliary tool and the orientation of the clip is changeable through rotation.