Method for detecting unprocessed grain sample

The invention provides an unprocessed grain sample detection method which comprises the following steps: selecting different sample separation proportions according to the type of an unprocessed grain sample to carry out first sample separation so as to obtain a component determination sample and a food safety index determination sample; the types of the unprocessed grain samples comprise corn, wheat, unhulled rice and soybeans; according to the types of the raw grain samples, selecting different sample separation proportions to carry out secondary sample separation on the component determination samples so as to obtain a plurality of content determination samples corresponding to different detection indexes; and respectively performing corresponding detection on the plurality of content determination samples and the food safety index determination samples so as to determine the quality of the unprocessed grain sample. According to the method, targeted sample separation is performed according to the types of