The 7^th LASG/IAP & College of Atmospheric Sciences/ Nanjing University Joint Workshop on Climate System Model Development and Numerical Modeling was held from 15-17 April, 2009 in Liyang, Jiangsu . More than 70 scientists and students from IAP, Nanjing University , the First Institute of Oceanography of State Oceanic Administration, PLA University of Science and Technology, Nanjing University of Information, Science and Technology attended the workshop.  The themes of the workshop include regional climate system model, global climate system model, and climate variability. A noted difference of the workshop from the previous ones is that the number of oral reports was significantly reduced and posters are greatly encouraged to allow for sufficient time for discussion and communication. That all the symposia are chaired by senior postgraduate students is another highlight. As the researchers of the future generation, students’ initiatives were encouraged and their good organizing ability and inductive reasoning were demonstrated.