A rivet nut electric tool comprises an outer cover (37), a clutch control system, a gear transmission system, a travel control system and a screw-rod nut assembly. The clutch control system, the gear transmission system, the travel control system and the screw-rod nut assembly are arranged in the outer cover (37). The clutch control system is cooperated with the gear transmission system to be on and off and transmit. The travel control system precisely controls the travel. Signals can be provided and the nut is riveted by the moving of a screw-rod (7). The gear clutch assembly drives a hexagonal connecting rod (6) to finish rivet nut screwing-in and screwing-out. Three sensors (39) are connected with a circuit board (25) by control lines. The clutch control system is cooperated with the three sensors (39) to work. A trigger (34) is arranged on the outer cover (37). The rivet nut electric tool with these structures has the advantages of that the power is high and rivet nuts with different specifications can be riveted. The circuit board controls precisely the clutch control system, the gear transmission system and the travel control system to make sure that the rivet nuts are reliably installed in place to be riveted. Furthermore, the travel and the electric quantity are visible, and the operation is convenient.