The present invention relates to a connection device which may smoothly couple a working device including a bucket to a working device connection hole by moving a slider body without accurately inserting the working device when the working device is coupled. The connection device for tractor work includes: a main frame mounted on a front end of a loader of the tractor using a coupler as a medium a slide-movable slider body mounted on each of both sides of a front surface of the main frame and a work device connection hole installed between the working device and the slider body. The connection device further includes a width adjustment cylinder disposed between the slider bodies to adjust a width between the slider bodies. A slider which is slide-moved on the main frame is disposed on the slider body. A hook rod for moving a ring part disposed on an upper portion of a side of the working device connection hole in a state where the ring part is hooked thereto is horizontally disposed on an upper portion of the slider body. A coupling part coupled to a fixed part disposed on a lower portion of a side of the working device connection hole when the slider body is slide-moved is disposed on a sidewall of a lower portion of the slider body. Thus, the fixed part and the coupling part are coupled to or released from each other by adjusting the width between the slider bodies by an operation of the width adjustment cylinder.La présente invention porte sur un dispositif de raccordement qui peut raccorder sans heurt un dispositif travaillant comprenant un godet à un trou de raccordement de dispositif travaillant, en déplaçant un corps coulissant sans faire intervenir précisément le dispositif travaillant lorsque le dispositif travaillant est raccordé. Le dispositif de raccordement pour travail au tracteur comprend : un châssis principal monté sur une extrémité avant dune chargeuse du tracteur en utilisant un coupleur comme intermédiaire un corps coulissant mobile en coulissem
