The invention relates to the technical field of electric light source illumination and specifically discloses a solar power supply double-push injection-locking power synthesis halogen tungsten lamp. Two self-sustained oscillation chips 4, 6 are together connected to a timing resistor R2 and a capacitor C4 for synchronous oscillation. A self-sustained oscillation chip 4, an output power transformer T1 of a push-pull inverter A, a self-sustained oscillation chip 6, and an output power transformer T2 of a push-pull inverter B are fed into an addition coupler for power synthesis. The synthesized power is fed into a lamp tube circuit for turning a halogen tungsten lamp tube on. Signals of a reference crystal oscillator are injected into RC oscillators of the two self-sustained oscillation chips 4, 6 through a frequency divider for phase locking. Excessive temperature rise of the device, changes of oscillation frequency, imbalanced power and dim light are avoided. The halogen tungsten lamp is suitably used in illumination occasions as a halogen tungsten lamp powered by a solar low-voltage heavy-current power supply.