The phenomenon of voluntary failure in the third sector has aroused widespread concern in academic circles. However, on the issue of eliminating voluntary failure, the existing research focuses on the solution of three sectors’ cooperation, fails to distinguish the different scenarios of “failure”, and is unable to respond to and explain the paradox between theory and reality. Based on the theoretical framework of voluntary failure proposed by Salamon, this paper analyzes the impact of the Internet on voluntary failure by observing the third sector’s participation in the prevention and control of covid19 in China. The research found that in the specific scenario of public crisis, the timeliness and complexity of the task will lead to extraordinary difficulties in cross sectoral cooperation. The application of Internet technology is conducive to the expansion of charity resources, the expansion of service coverage, the elimination of parental production style, the improvement of service professionalism of the third sector, and, to a certain extent, the elimination of voluntary failure. This paper not only enriches and expands the existing research results of voluntary failure in theory, but also analyzes the policy implications of public crisis management under the background of Internet plus charity from a practical perspective.