It is our great pleasure to invite you to attend and contribute to the Sixth International Colloquium on Microfluidics (Shenyang) on September 22-25, 2017 at Northeastern University (NEU) in Shenyang, the largest city in Northeast China and an important economic, cultural, traffic and trade center and a celebrated old city with more than 2,000 years of history. The conference will be conjugated with two domestic national meetings (The Eleventh National Conference on Micro Total Analysis System/ The Sixth National Symposium on Micro/NanoScale Bioseparations and Bioanalysis). More than four hundred participants will come to this conference and share their latest research advancements in the areas of microfluidics, micro total analysis system and micro/nanoscale bioseparations and bioanalysis, and their application in chemistry, biology, medicine, environment, pharmacology and food safety etc. The symposium will consist of a number of plenary/invited lectures and oral or poster presentations. Welcome to Shenyang in golden autumn, 2017.