The invention discloses a collaborative monitoring method and system for overall process management and control of environmental protection measures of transmission and transformation project construction. The method comprises the following steps: a mobile intelligent collaboration terminal packages onsite transmission and transformation project execution conditions collected in real time into a file; the mobile intelligent collaboration terminal sends a connection request to a server, and starts to send protocol data to the server after successfully connecting the server; the server analyzes the received protocol data and feeds back an analysis result to the mobile intelligent collaboration terminal; the mobile intelligent collaboration terminal judges whether a current file transmission process is breakpoint continuous transmission according to the analysis result and correspondingly sends the current file to the server; and the server receives the corresponding file, and monitors and stores the file in real time. According to the collaborative monitoring method and system disclosed by the invention, by means of the collaborative work of the mobile intelligent collaboration terminal and the server, the monitoring means of the environmental protection measures can be effectively innovated, the electromagnetic environment protection work is promoted to develop toward the intelligent direction, and the environmental protection supervision level in the transmission and transformation project construction process is improved.