The embodiment of the invention provides a method and device for circulating preheating in the double horizontal well steam assisted gravity drainage process. The method comprises the steps that according to oil reservoir static parameters and pipe column structure parameters of a steam injection well, on-process thermal parameter changing rules of superheated steam in a perpendicular shaft are analyzed, and thermal parameters of the superheated steam at the horizontal well end of the steam injection well are calculated; according to the oil reservoir static parameters, the thermal parameter distribution states of the superheated steam in a horizontal section are calculated when the superheated steam is injected to double oil columns at the horizontal section under different steam injection well pipe column structure parameters; according to the thermal parameters of the superheated steam at the horizontal well end of the steam injection well and the thermal parameter distribution states of the superheated steam in the horizontal section, the pipe column structure parameters of the steam injection well are adjusted, steam injection parameters for superheated steam injected into the steam injection well are determined, the superheated steam is injected into the steam injection well with the adjusted pipe column structure parameters and the determined steam injection parameters to carry out circulating preheating, and thus the horizontal well toe end of the steam injection well is in a constant superheated state.