In November 1997, calligraphy was exhibited in the Second National Zhengshu Competition
In December p>1998, his seal cutting works won the silver prize in the Second All-Zhejiang Calligraphy Competition
In October 1999, calligraphy was exhibited in the Third National Couplet Calligraphy Exhibition
In October 1999, seal cutting won the fourth seal cutting by Xiling Printing Society. The 8th Exhibition of Young and Middle-aged Calligraphy and Seal Carvers
In May p>2, seal carving was included in the Invitational Exhibition of Contemporary Young Seal Carvers
In November p>21, seal carving was included in the Exhibition of Contemporary Classical Fine Zhu Wenyin
In October p>22, his calligraphy works won the bronze prize in the 2nd Young and Middle-aged Calligraphy and Seal Carving Exhibition in Zhejiang Province
In October p>p>23, his calligraphy works won the 12th National Stars Exhibition. Exhibition
In p>24, his calligraphy works won the gold medal in the 4th All-Zhejiang Calligraphy Exhibition
In p>26, he won the special prize in the 6th seal cutting evaluation exhibition of Xiling Press
In p>28, He Difei's calligraphy seal cutting works were published by Xiling Press
In p>p>29, his calligraphy works were specially invited to participate in the 5th Exhibition of Young and Middle-aged Calligraphy Works in Zhejiang Province.