The thermal-induced rate error of the fiber optic gyroscope (FOG) caused by external thermal disturbances is related to the spatial distribution of the temperature field and the winding process of the fiber coil. In order to compensate for the length asymmetry of the fiber center point in the quadrupolar winding (QAD) method, this paper proposes a method based on the cooperation between a quadruple cylinder-wound coil (Q-CYL) and quadruple thermal insulation cavities to suppress the thermal-induced bias drift of the FOG. The bias drift error model is established based on the Shupe error and thermal stress error, and the accuracy of this model is verified by experiment and simulation results of the QAD coil with a single insulation cavity. The drift suppression ability of the Q-CYL with quadruple insulation cavities under different thermal disturbance spatial positions is analyzed through comparisons with three other typical methods using the finite element method (FEM). The results show that the Q-CYL with quadruple insulation cavities can better homogenize the temperature field of the fiber coil and reduces the drift error caused by thermal stress, thereby more effectively suppressing the thermal-induced rate error of the FOG.