"Frog" is an important work by contemporary Chinese writer Mo Yan, published in 2009. "Frog" is based on the turbulent rural birth history of New China in the past 60 years and tells the story of more than 50 years of working in obstetrics and gynecology. The life experience of the rural female doctor aunt also reflects the difficult journey of family planning in China.

This book adheres to the author's consistent style of local literature, and focuses on a corner of Chinese society with delicate brushwork and simple words. While vividly describing the arduous and complex historical process that the country has gone through in order to control the rapid growth of population and implement the national policy of family planning, it has successfully created a vivid and touching image of a rural gynecologist; and combined with the process of family planning This complex phenomenon analyzes the humble, embarrassing, entangled, and contradictory spiritual world of intellectuals represented by the narrator Tadpole. "Frog" is Mo Yan's 11th novel that he spent more than ten years in the making, four years of writing, three revisions of drafts, and painstaking writing. It was published by Shanghai Literature and Art Publishing House in December 2009. Compared with his other important full-length works, such as "Wine Country", "Sandalwood Punishment", "Life and Death", "Frog" continues these works' emphasis on novel structure, narrative language, aesthetic appeal, character creation, and epic reflection. The persistent exploration of social changes and other aspects has reached a very high artistic level as a whole. It is also one of the most important masterpieces of Chinese original novels in recent years.

The structure of the novel is novel and meticulous, consisting of five letters written by the playwright Tadpole to the Japanese writer Sugitani Yoshito. The first four letters included long narratives about her aunt, who had been a gynecologist for more than 50 years, and included Tadpole's own life story; the fifth letter included a play about her aunt and Tadpole herself. Therefore, this is a work that cleverly blends letters, metafictional narratives and dramas into one, broadening the artistic expression space of novels; it is another groundbreaking artistic attempt in Mo Yan's creation.