We are happy to invite you to the 2014 edition of the Sino-French International Associated Laboratory (LIA) "ORIGINS" workshop series. It will be held from 20 to 25 Oct. in Tsinghua University, Beijing. The main topic of this workshop is "Dark Matter: Astrophysical and Experimental Constraints". In 2014, we are celebrating the 50th Anniversary of the Diplomatic Relations between France and the People's Republic of China. This anniversary will give a more official and festive colour to our regular LIA workshop. Since the establishment of LIA on October 22, 2008, the joint Lab has supported many exchanges of researchers (short and mid-term visits), meetings & workshops, joint PhD & post-doc positions and collaborative activities between Chinese and French researchers on many astrophysics issues of interest to the Chinese and French communities, including instrumentation.