The utility model discloses an unmanned aerial vehicle and parachute delayed separation mechanism which comprises an electromagnet and a locking device. When the locking device is in a locked state, the electromagnet is not electrified, an armature of the electromagnet does not extend outwards, a driving rod and a connecting rod are located on the same straight line, dead point positions of a hinge four-bar mechanism are utilized, and a driven rod bearing the tension of a parachute can not rotate; when the locking device is unlocked, the armature of the electromagnet extends outwards, the driving rod of the hinge four-bar mechanism is pushed to rotate, the dead point positions of the hinge four-bar mechanism are broken, and the joints of an unmanned vehicle and the recycled parachute are switched. The unmanned aerial vehicle and parachute delayed separation mechanism has the advantages that the large tension of the parachute is borne by the driving rod, the connecting rod, the driven rod and other components of the hinge four-bar mechanism, and the bearing capacity is high; the value of thrust outputted by the electromagnet is small, and therefore the appearance sizes and masses of the electromagnet and the delayed separation mechanism can be effectively decreased; the mechanism is simple and practical in structural principle and high in reliability and has large application value.