Multi-party security computing verification method and system

The embodiment of the invention provides a multi-party security computing verification method and system. The data user samples a first data set provided by the data provider and used for multi-party security calculation to obtain a sampled data set; the data user analyzes the sampling data set to obtain first data appearance information corresponding to the sampling data set; and the data user performs honesty verification on the data provider according to the first data appearance information and second data appearance information corresponding to a second data set declared by the data provider. According to the scheme, the first data set participating in calculation is sampled, and the integrity is verified by analyzing the appearance information of the sampled data and the appearance information claimed by the data provider, so that the data volume required to be verified can be effectively reduced by analyzing the sampled data, the data operation amount is reduced, and the verification speed is increased