The invention discloses a plug-in type electronic transmitter which comprises a shell. The shell comprises a large cavity and a small cavity, cover plates are respectively mounted on the large cavity and the small cavity, a front face plate of the shell is provided with a U-shaped handle and spring screws, a radiofrequency connector, a rectangular low-frequency connector and positioning pins are mounted on the rear end surface of the shell, amplifiers, a distributor, a synthesizer, a temperature sensor, isolators, an attenuator, a first capacitor combination, control switches, a cable assembly and micro-strip boards are mounted in the large cavity, one end of a cable is directly welded, and the other end of the cable is welded with the connectors; a second capacitor combination and a monitoring unit are mounted in the small cavity, and the first capacitor combination and the second capacitor combination are respectively mounted on a side wall of the large cavity and a side wall of the small cavity. The plug-in type electronic transmitter has the advantages of standardization, generalization, modularization and capability of being widely applied to fields of radar, communication and the like.