The invention relates to a spiral type lock catch which is opened and closed in rotation type, which solves the defects that a lock catch of a box in the prior art is realized by a pull button, the lock catch becomes loose and the locking force is reduced after long-time use. The spiral type lock catch comprises a base, a pedestal and a slider for connecting the base and the pedestal, the base isconnected with a rotatable pull button, the pedestal is provided with a jack, the end of the slider is fixed with a pin shaft, the pull button is connected with the slider so as to form a rotary motion structure, and the pin shaft is inserted into the jack so as to form a locking structure. Through the arc-shaped matching connection between the pull button and the slider, the rotary motion of thepull button is converted into the linear movement of the slider, thus leading the pin shaft to be separated from the jack or to be inserted into the jack and completing the unlocking and locking actions, and the opening and closing force of a box cover and a box bottom is supported by the pin shaft, thus improving the safety, prolonging the service life and leading to convenient operation.