The 2nd International Symposium on Mechanical Science and Technology (ISMST 2011) will take place in Guangzhou, China, December 20-21, 2011. A key aspect of this conference is the strong mixture of academia and industry. This allows for the free exchange of ideas and challenges faced by these two key stakeholders and encourage future collaboration between members of these groups. This conference provides an excellent opportunity for you to update your understanding, whether you are an industry practitioner, engineering or graduate student, or academic researcher in this field. After refereeing process, all accepted papers will be published on the international journal of  Advanced Science Letters (SCIE Journal, Impact factor: 1.253) and Journal of Scientific Conference Proceedings ( ISI Thomson ISTP/CPCI).