The invention provides a manufacturing method for an inner pot. The manufacturing method for the inner pot comprises the following steps: an auxiliary connecting layer is manufactured on the wall of the inner pot body; a magnetic-conductive layer is arranged on the surface of the auxiliary connecting layer. According to the manufacturing method for the inner pot, provided by the invention, as the auxiliary connecting layer is manufactured on the wall of the inner pot body and serves as a transitional layer for connecting the inner pot body with the magnetic-conductive layer, the bonding strength between the inner pot body and the magnetic-conductive layer is greatly enhanced, the thermal expansion coefficient of the auxiliary connecting layer is positioned between the thermal expansion coefficient of the inner pot body and the thermal expansion coefficient of the magnetic-conductive layer, so that the gradual transition of thermal deformation of the inner pot body, the auxiliary connecting layer and the magnetic-conductive layer is formed and the problems in the traditional techniques that as the magnetic-conductive layer is directly sprayed on the inner pot body, the bonding strength of the inner pot body and the magnetic-conductive layer is low, the heated magnetic-conductive layer is easy to crack and drop off and the service life is short are solved.