The invention discloses a sample automatic-blanking and code printing device for cigarette inspection. The device is characterized by consisting of a left hopper, a right hopper, a blanking passage, an electromagnet, a lifting plate, photoelectric detectors and a code sprayer nozzle, wherein the left and right hoppers are used for containing cigarette samples; the blanking passage is positioned below the left and right hoppers, and consists of arched blanking plates on two sides, a front baffle plate and a rear baffle plate; and the electromagnet, the lifting plate and the photoelectric detectors are arranged on the lower part of the blanking passage and are controlled by a cylinder. The device overcomes the shortcomings of easy production of human errors, high labor intensity and low efficiency in a sample preparation process in the conventional three-point inspection of cigarette products in the industry, and can realize the automation of sample blanking, cigarette combination and cigarette code printing.