The utility model discloses a real-time recording system for transmission maintenance operation. The real-time recording system comprises portable miniature electronic maintenance real-time recording equipment and a server, wherein a CPU (central pocessing unit) processor is arranged in the portable miniature electronic maintenance real-time recording equipment; the CPU processor is respectively connected with a hard disk, a DDR (double data rate) memory, an external prolongable camera, a wireless headset, a touch screen, a GPS (global position system) navigation module, a 4G/3G/WIFI (wireless fidelity) wireless communication module and an RJ45/USB (universal serial bus) interface, a portable power supply connector and portable light compensation equipment; the portable miniature electronic maintenance real-time recording equipment is connected with the server through a world wide web; the maintenance record of the portable miniature electronic maintenance real-time recording equipment is uploaded to the server in real time; and the server and the portable miniature electronic maintenance real-time recording equipment can carry out real-time voice communication through the wireless headset. According to the real-time recording system, the transmission maintenance efficiency and reliability are greatly improved; the utilization rate of assets is optimized; and the states of a power transmission line and the field operation can be comprehensively monitored in real time.