The invention discloses a broad bean processing method. The method comprises the following steps that (1) preparation is conducted, specifically, a broad bean cutting device is used; (2) selecting is conducted, specifically, broad beans uniform in particle size are selected out; (3) bean soaking is conducted, specifically, the broad beans are soaked into clear water; (4) airing is conducted, specifically, the soaked broad beans are aired; (5) edible oil is added, specifically, the edible oil is added into a deep-frying tank; (6) a processing tank is loaded, specifically, the aired broad beans are placed into the processing tank, and move into through holes of a flexible layer under guidance of the side wall of the processing tank; (7) cutting is conducted, specifically, a rotary motor is started to drive a cam to rotate, the cam intermittently squeezes a squeezing plate to drive a squeezing column to reciprocate vertically under the effect of a compressed spring, and a tool cuts the broad beans and squeezes the broad beans to fall into the deep-frying tank from the through holes; and (8) deep frying is conducted, specifically, a heater is started, and the edible oil in the deep-frying tank is heated by the heater so as to deep fry the broad beans. By adoption of the scheme, the problems that a traditional broad bean cutting process is low in efficiency, and the hands are prone to being cut are mainly solved.