Along with the rapid development of “internet plus” trend，new industries and new business have emerged，and platform economy is growing. Under the background of digital economy，the access to the delivery rider job is easy，the number of riders is large which makes them an important part of employment population，and this job reflects a combined development of “internet plus service industry” and “intelligence plus logistics”. This report analyzes the population structure，income，mobility and professional development of online riders，summarizes problems and difficulties in this business and puts forward suggestions on how to improve their working experience，enhance the implementation of the social security they enjoy now and build a better professional development system.