“白水素女”故事将神女与螺结合形成奇特的构思。从《搜神后记》到《原化记》中“白水素女”故事经过了修饰性、离奇性、寓意性三方面的演变,现实关心问题的转移、人神非匹观念的淡化、文学本身发展的趋向是构成这种演变的重要原因。“白水素女”故事的演变展现了由晋到唐部分小说家小说观念的转变以及世俗性渐强,宗教性渐弱的志怪小说发展规律。 “White and white woman ” story goddess and snail together to form a strange idea. The story of “White Water Woman” after “Sou Shen” and “Yuan Hua Ji” has undergone the evolution of three aspects of modification, bizarreness and morality, the transfer of practical concerns, the desalination of the concept of innocent man and God, The tendency of the development of literature itself constitutes an important reason for this evolution. The evolution of the story of White Water Woman shows the change of the concept of novels by some novelists from Jin Dynasty to Tang Dynasty and the law of the development of the mysterious novels with gradually secularity and religious decline.