The invention relates to a producing technology of a glass cup, in particular to a producing technology of a silver-liner double-deck glass cup. The producing technology comprises the following steps of choosing a proper glass tube and a silver tube, heating the silver tube from the middle part of the silver tube, and conducting undercutting on the silver tube to form a liner which is closed at one end and opened at the other end; rotating the glass tube while conducting local heating on the middle of the glass tube till glass is softened, using a blade to conduct cutting to form two external cup bodies which have cup bottoms, covering the liner with the external cup bodies, conducting rotary heating on the liner and the external cup bodies so that the cup bottom is formed through firing, using a fire sprayer to conduct preheating on a cup rim of the glass cup, and then using a die to conduct compression moulding after the cup rim is burned and fused, conducting annealing treatment on the formed cup body to obtain a semi-finished product, and graving, grinding, polishing, cleaning the semi-finished product to obtain the silver-liner double-deck glass cup. The producing technology of the glass cup has the advantages of being outstanding in low energy consumption, simple in technology, and the produced glass cup has good impact resistance, weather fastness, heat resistance, and airtightness.