The invention belongs to the technical field of millimeter wave integrated circuits, and particularly relates to a rotary traveling wave oscillator of multiple energy injection locking. The circuit mainly comprises a rotary traveling wave oscillator, a negative resistance network, a voltage controlled variable capacitor, a voltage controlled phase shifter and a harmonic generation circuit. Parasitic resistances in a capacitance device and an inductance device are high with the rising of the signal frequency, particularly when the frequency in ranges of millimeter waves or sub-millimeter waves in the integrated circuit, and simple capacitance inductance oscillator is difficult to achieve the output of wide tuning ranges and large power. According to the rotary traveling wave oscillator, a voltage-controlled rotary traveling wave oscillator is used to produce fundamental frequency signals to couple the harmonic generation circuit at different positions of the oscillator. The produced high sub-harmonic signals are injected into another oscillator to achieve oscillation with high frequency. The injection locking range is increased by injecting a plurality of energy and choosing appropriate phase of the injected signal.