Achieving sustainable agricultural development has always been Vietnam's goal. Today, with the rapid development of society, more and more new technologies appear, but their application in agricultural production is still limited and has not been widely implemented, mango is a typical product. With the progress of science and technology, many fruit sorters have been born, but in Vietnam, the mango classification process is still manual and the yield is very low. In addition, the traceability of mango is still opaque, reducing the competitive advantage of Vietnamese mango in the export market. In the face of these difficulties, this study aims to design a mango sorting machine that applies transparent traceability model applying blockchain technology, aiming at improving the quality and value of Vietnamese mango in the market.