The invention provides an electric automobile vacuum pump control method and device, a controller and an automobile. The method is applied to a vacuum boost controller VBP in communication connectionwith a control module of an electric automobile. The method includes: acquiring a preset signal of the control module; when detecting that the preset signal accords with a preset fault condition, determining a control module associated fault condition of the vacuum pump; determining a corresponding fault level of the fault condition according to a preset corresponding relation between fault conditions and fault levels; executing a preset fault handling operation corresponding to the fault level.