The invention relates to a feedback-winding-free inductance power oscillating circuit, which is characterized by comprising a resister R1, a resister Rb, a resister Rf, a resister Rp, a resister Re, a resister Re, a capacitor Cf, a high-speed switching diode D, an audion Q1, an audion Q2, an audion Q3, an inductance coil or an ordinary induction transformer T. Compared with the prior art, the invention has the advantages of ideal working condition of the oscillating circuit, ensured stable power output of the drive circuit and no generation of overexcitation which causes a excitation-driven transistor to be burnt due to drastic changes of loading.