The invention belongs to the technical field of electric car manufacturing, and discloses a battery pack installing and guiding structure. The installing and guiding structure comprises a support, a guide assembly, an induction component and fixing assemblies; the guide assembly comprises a rolling wheel component and auxiliary guide components, the rolling wheel component and the auxiliary guidecomponents are fixedly arranged on the support, the auxiliary guide components are arranged at the two sides of the rolling wheel component, and a battery pack can roll and slide on the rolling wheelcomponent and is located between the two auxiliary guide components; the induction component is fixed to the support and located at one end of the guide assembly; the fixing assemblies are located atthe two ends of the guide assembly and detachably connected with the battery pack and the support respectively. The rolling wheel component and the auxiliary guide components are arranged, the friction force of rolling and sliding of the battery pack is reduced, the working cycle is shortened, and the working efficiency is improved. The location accuracy of the battery pack is improved by arranging the induction component. The fixing assemblies are detachably connected to the battery pack and the support, and therefore the battery pack is convenient to install, maintain and replace.