The invention aims to provide a device for preventing chain breakage of grease transportation equipment in order to solve the problems that the production safety coefficient of a grease extraction factory is low and energy waste of the grease extraction factory is high due to the fact that at present, when grease extraction bean pulp is transported in a scraper conveyor, the phenomena of chain breakage and chain jumping occur in the scraper conveyor and to crease a reasonable and feasible chain-breakage-prevention and chain-jumping-prevention device for the grease extraction beam pulp transportation-scraper conveyor technology. According to the technical scheme, the device comprises a feeding device, a propulsion device and an anti-sticking device. The feeding device 2 is arranged below a feed port of an extractor from right to left. The propulsion device 4 is arranged below a chain. The anti-sticking device 7 is arranged on a scraper conveyor head wheel. The scraper conveyor can be used for transporting various kinds of beam pulp, the transportation currents of the scraper conveyor are stabilized between 14-21A, the problems such as chain jumping and chain breakage cannot occur and the safety of an extraction workshop is guaranteed.