The invention relates to an intelligent appearance detection machine for an optical module connector die casting and a method thereof. The intelligent appearance detection machine comprises a feeding machine frame, a feeding device, a main machine frame, a rotary disc conveying device, a visual detection device, an unqualified product discharging device, a discharging machine frame and a qualified product discharging device, the feeding machine frame is located on one side of the main machine frame, and the discharging machine frame is located on the other side of the main machine frame; the feeding device drives the optical module connector die castings in the trays to be conveyed to the rotary disc conveying device, the rotary disc conveying device drives the optical module connector die castings to be conveyed to the visual detection device, and the visual detection device detects whether the appearances of the die castings are qualified or not. The intelligent appearance detection machine for the optical module connector die casting and the method thereof have the advantages that the optical module connector die casting does not need to be manually taken, placed, observed and detected, the whole process is automatic, the efficiency is high, the labor cost is saved, the detection precision is high, and the modern production requirement is met.