In 1995, he was admitted to the base class of the History Department of Capital Normal University. In 1999, he was recommended to the department to study for a master's degree in specialized history. In 2002, he was admitted to the department for a doctorate degree in medieval history. From 2005 to the China Institute of Historical Geography, Fudan University, engaged in post-doctoral research. In 2007, the post-doctorate went out and stayed at the office. In 2009, he was an associate researcher. Mainly research Chinese economic history, disaster history, Qing Dynasty geography.