The invention relates to a crane control port fault information storage and retrieval system andmethod, andbelongs to the technical field of cranes. The crane control port fault information storage and retrieval system comprises a controller port fault recording storage module and a controller port fault retrieval module, anda display module is connected with the controller port fault recording storage module and the controller port fault retrieval module; and controller portscorrespondingly record the self fault state, the display module displays the current port state, the faulty port is displayed in different colors, the controller port fault retrieval module retrieves and views the port fault information of an IO module, a random password is authorized to enter in an IO module fault storage and copy interface, and a fault report of one or all IO modules is copied by a computer or a mobile hard disk for viewing.Thecrane control port fault information storage and retrieval system andmethod have the beneficial effects that the port fault information of the IO modules of a controller is automatically stored in the background of a display, an IO module port retrieval and viewing function is added to the display interface, so that technical personnel can conveniently view and analyze the fault information of the controller port when a vehicle works for a long time, data are beneficial to analyzing the fault caused in the use process of the vehicle, and the reliability of products is effectively improved.