The utility model provides a safety backpack colludes knot, be in including rotating needle, arrangement last spring, rotating needle mounting and the connecting piece of rotating needle is constituteed, rotating needle installs on the rotating needle mounting, rotating needle reciprocates and locks and open the action under the effect of spring, the connecting piece is fixed the lower extreme ofrotating needle mounting, the utility model provides a safety backpack colludes knot has advantages such as convenient to use, structural design are equitable, the operational safety height of being convenient for, has very extensive range of application, for people's life provides very big facility, very big improvement safety used performance.