The invention relates to a bi-direction hydraulic catch wheel automatic control device for a location of a large-scale rotary kiln and belongs to the technical field of location control of the rotary kiln. The automatic control device comprises a mechanical system, a hydraulic system, a hydraulic valve-pipeline system and an automatic control system. Automatic control of slow vertical shifting ateven intervals during the production state of the rotary kiln is achieved, uneven contacts and abrasions between rolling belts and riding wheels are avoided, the service life of the rotary kiln rolling belts and transmission gears is guaranteed, and defects of low accuracy of traditional catch wheel control devices, single control method, high fault rates and inconvenience in maintenance are overcome. When a work staff starts the automatic controlling way through a human-machine interface, the automatic control system controls one of the hydraulic catch wheels to advance, the whole advancing process uses a way of intermittent movement, and the time parameter of the intermittent movement can be conveniently adjusted through the human-machine interface of an industrial personal computer. The automatic control system can automatically control the main equipment in the hydraulic system to start or stop during the normal work of the catch wheels, so that power consumption and equipment loss can be greatly reduced.