The invention discloses a production process for a composite bottom pot. The production process for the composite bottom pot comprises the following steps: stainless steel pot body forming, pure aluminium piece forming, stainless steel composite bottom piece forming, butt-welding compounding, repeated thermal-forging, internal and external coating, handle mounting and packaging and warehousing. The pot bottom which is manufactured by the production process has good heat conductivity so as to achieve the purpose of heating uniformly to improve a cooking effect; the pot bottom is thickened, and meanwhile, the service life of the pot is prolonged.