The invention discloses a power distribution network risk collaborative management and control system which comprises a data source layer, a communication layer, a data layer, a business support layer, a business logic layer and a user layer. The data source layer is communicated with the data layer through the communication layer; and the business logic layer comprises a weak link panorama identification module, an integrated risk assessment module and a risk collaborative management and control module. The power distribution network risk collaborative management and control system carries out risk collaborative management and control on a power distribution network on the basis of risk assessment; and the purpose of the risk collaborative management and control is to reduce the power grid risk to an acceptable range, thereby guaranteeing safety operation of the system.