According to the size and grain of betel nut, and the requirements of different manufacturers, it can give a set of customized areca seed sorting standards. The areca seed sorting system adopts machine vision+ laser+ near infrared to sort the areca according to the size, grain and internal flaw detection standard. It can calculate the size and grain of betel nut . The average qualified rate of sorting machine is over 95%. There are mature algorithms to solve the problem of identification of long stem betel nut and flower pedicle betel nut, which effectively improves the product quality.