The combination of crowdsourcing and digital humanities research,which not only promotes the furtherance and breakthroughs in digital humanities research,but also plays a role in improving the scientific literacy of the people,has created a win-win situation for the public and digital humanities research institutions,thus becoming one of the inevitable trends in the development of digital humanities research.Shanghai Library has committed to applying crowdsourcing to various digital humanities projects in recent years.Taking the crowdsourcing projects of Shanghai Library as examples,this paper introduces the construction concept from the aspects of construction demand,user objects and crowdsourcing forms,and makes some suggestions on the application of crowdsourcing in library digital humanities based on current situation of system/platform usage.