Reset mechanism and tubing protector adopting same

The invention provides a reset mechanism and a tubing protector adopting same, and solves the problems that in a transportation process of an existing tubing protector, a piston is subjected to vibration, gravity, barometric disturbance and other factors, so that an action pull rod can move axially, the protector is opened accidentally, and the protector loses efficacy. The reset mechanism is mounted in a base at the lower end of a tubing protector shell and comprises a mandrel, two reset pull rods, two reset springs and a plug roller assembly, wherein the plug roller assembly comprises a plug, a mandrel and a roller; the upper end of the plug is in contact with the lower end of a tubing protector action pull rod; the roller is mounted at the lower end of the plug through the mandrel; two reset mechanism mounting cavities are formed in the base, and are stepped holes which comprise a first stepped hole and a second stepped hole; the reset pull rods are vertically arranged in the reset mechanism mounting cavit