NOVELTY - Production of acetylene glycol series product, involves: replacing ethyne gas into reaction vessel three times, conveying liquid ammonia to the reactor, then continuously feeding acetylene at flow rate of 2.5-15 m3/hour to the reaction vessel, then carrying out the reaction while adding ketone and catalyst at the same time, stopping adding catalytic agent, raising the temperature and pressure, adding water, stirring to obtain hydrolyzate, adding hydrolyzate to container, standing for 20-60 minutes, layering to obtain neutralizing substance; and distilling the neutralizing substance.    USE - For production of acetylene glycol series product (claimed) useful in various applications such as pesticide, pharmaceutical and chemical intermediates, metal, synthetic material and daily chemical industry.    ADVANTAGE - The method can effectively reduce the dosage of the catalyst; utilizes cheap and easy to get catalyst, thus reduces the production cost, and improves the yield of acetylene glycol series product, which is more than 90%; has no three-waste discharge, which meets the national related requirement of energy conservation and emission reduction.    DETAILED DESCRIPTION - Production of acetylene glycol series product, involves: (1) replacing ethyne gas into reaction vessel three times, after that conveying liquid ammonia to the reactor, then continuously feeding acetylene at flow rate of 2.5-15 m3/hour to the reaction vessel, where the reaction mixture is divided into five stages: a) the temperature of the vessel is 0-15 degrees C, the pressure in the vessel is 0-0.5 MPa, and the reaction time is 1 hour; b) the temperature of the vessel is 15-20 degrees C, the pressure in the vessel is 0.5-0.8 MPa, then carrying out the reaction while adding ketone and catalyst at the same time, where the flow rate of ketone is 50 l/hour, and flow rate of catalyst is 50 ml/hour, the reaction time is 1 hour; c) the temperature of the vessel is 20-25 degrees C, the pressure in the vessel is 0.8-1 MPa, then carrying out the reaction while adding ketone and catalyst at the same time, where the flow rate of ketone is 80 l/hour, and flow rate of the catalyst is 20 ml/hour and the reaction time is 2.5 hours; d) the temperature of the vessel is 25-30 degrees C, the pressure in the vessel is 1-1.2 MPa, then carrying out the reaction while adding ketone and catalyst at the same time, where the flow rate of ketone is 120 l/hour, and the flow rate of catalyst is 30 ml/hour and the reaction time is 2 hours; e) stopping adding catalytic agent, raising the temperature of the vessel to 30-35 degrees C, the pressure in the vessel to 1.2-1.4 MPa, the reaction time is 2 hours to obtain the reactant; (2) after the ethynylation reaction is finished, slowly adding water to the reaction vessel, stirring the water and the reactant to fully react, to obtain hydrolyzate; (3) Adding the hydrolyzate to the container, standing for 20-60 minutes, layering, which is divided into a water phase layer, emulsifying layer and a phase layer, and then discharging the water phase layer and the emulsion layer, adding hydrochloric acid to the oil phase layer to make the pH value of the solution to 6-8 to obtain the neutralizing substance; (4) distilling the neutralizing substance, stopping to anhydrous flow, to obtain the finished product.