Abstract: Two-dimensional gel electrophoresis was employed to analyze the proteome of loquat peel in two varieties which have different resistance to high temperature stress under short-term sunburn.The results showed that the honghouben' had 32 differentially expressed proteins point,including 17 up-regulated,15 down-regulated,and the jinzhong' had 52 differentially expressed proteins point,including 38 up-regulated,14 down-regulated under short-term sunburn.The quantity of differentially expressed proteins of loquat peel in two varieties was different.It implicated that two varieties had different sensitivity to sunburn.