This paper described the research on the fundamentals and technology of electroless nickel plating on glass vacuum flask. The technology of pretreatment for electroless nickel plating on glass vacuum flask, such as, oil removing in alkaline solution, chemical roughening, sensitization, activation, and reduction etc. was also discussed in the present paper. The formulation of NaH2PO2 baths and technological condition and the principle of preparation of solution were summarized. （From : No.2, 2006 Glass & Enamel )