As soon as Mo Yan won the prize, there was an article in the newspaper introducing his frog, saying that it shaped the "touching" image of a family planning cadre. In fact, this book is about how family planning cadres persecute the Han people, and the description of forced ligation and forced abortion is shocking. In addition, Mo Yan wrote at the beginning of the book that this book is dedicated to the millions of readers in Qian Qian who experienced and were born in the family planning era.

Frog is an important work of Mo Yan, a contemporary writer in China, which was published in 2009. Frog tells the life experience of a rural woman doctor who has been engaged in obstetrics and gynecology for more than 50 years, and also reflects the difficult course of family planning in China. This book inherits the consistent style of the author's local literature, and stands in a corner of China society with exquisite brushwork and simple words.