The invention discloses an electric kettle with a water window and a processing technology. The processing technology comprises the following steps: a, selecting a raw material for rolling; b, after the step a is completed, grooving a kettle body by a grooving machine; c, after the step b is completed, preparing the water window; d, after the step c is completed, conducing scale molding by using athermal transfer printing technology; and e, after the step d is completed, processing the electric kettle. In the preparation process of the water window, a gum cover prepared from 13% of polyisoprene, 33% of polyisoprene rubber, 20% of polybutadiene rubber and 34% of isoprene is prepared, so that the connection of tempered glass and a kettle body groove is conveniently increased, and the sealing effect is increased; and secondly, the components are heat-resistant and non-toxic, so that the safety effect and heat resistance are increased. The water window is arranged, and scales are added onthe surface of the water window by a thermal transfer printer in a mode of flat ironing, so that the scale reading ability is increased under the condition that the inner part of the kettle can be viewed, therefore the effect of observation is improved, and promotion is convenient.