In 1920, he was invited to edit a new column: "The Fiction-New-Wwaves" () in "Fiction Monthly" (小说月报). He even took up the post of Chief Editor of the Monthly in the same year and was obliged to reform it thoroughly, in response to the New Cultural Movement (). His young writer friends in Beijing supported him by submitting their creative writings, translating Western literature and their views on new literature theories and techniques to the magazines. Literary Study Group () was formed partly because of this. The reformed Monthly was proved to be a success. It had facilitated the continuation of the New Cultural Movement by selling ten thousand copies a month and more importantly by introducing Literature for life, a brand new realistic approach to Chinese literature. In this period, Mao Dun had become a leading figure of the movement in the southern part of China.