The invention discloses a user survey method and system based on government affairs cloud, which can obtain the information of the surveyor who needs to be interviewed, based on the household registration information in the information, etc.; generate corresponding inquiry content; and obtain the voice and video information of the interviewee terminal , according to the obtained voice response information, compare the voice response information with the pronunciation sample information in the region to obtain the voice similarity parameter; analyze the video information according to the video information to obtain the emotional classification of the respondent, Obtaining the emotional parameter value; mapping the question and answer content, the voice similarity parameter and the emotional parameter value to form a question and answer form, and sending the question and answer form to the government affairs cloud. In the early stage of data investigation, the method and system perform data source credibility distinction, improve the user's data credibility when performing the investigation, and reduce sample noise in post-processing.