〈杜十娘怒沉百寶箱〉與〈負情儂傳〉皆是描寫青樓女子杜十娘與情郎李甲之間情感糾葛的小說，在情節內容上大同小異，然在寫作手法上卻略有不同。本文從文體、形式、情節、人物形象、主題思想、對話、背景、敘述觀點、想像虛構與結構等方面比較二文之異同。

“Du Shi Niang threw her box with much money into the river because of furor” and “The story about a man who threw off his lover” are both the love story about a prostitute and her lover. In the content, the two stories are almost the same. But in the way of how to write the story, they are a little different. The article will compare the same and difference between the two stories from their style, form, plot, image, theme, dialogue, background, perspective, imagination and structure.