The invention discloses a supervision place police service private network application management and control system based on an Android and a cloud platform. The system comprises an instant messagingmodule, a dual-system module, a cloud platform backup module, a video monitoring module, a positioning module and a voice recognition-to-text conversion module. The instant messaging comprises information transmission and backup of voice, video, characters, pictures, office information and the like. The content is uploaded to a background host and a cloud platform. A local cache is emptied outside the prison, so that information safety is realized, important file information is not leaked. A police officer working mode is adopted in the prison. Terminal data is uploaded in real time, and private network information safety is functionally limited. The operation of monitoring and backing up a video monitoring device in the monitoring area is conducted. The conversation voice is converted into text in the monitored conversation and psychological counseling process of police officers and prisoners. The conversation content is recorded, and the conversation privacy is guaranteed. Positioninformation monitoring carries out warning condition early warning through positioning, personnel tracking and trajectory analysis are free of accompanying warning, and prison guard safety is protected. The whole function is realized based on a cloud platform, all data is uploaded to the cloud platform for storage, and information sharing is facilitated.