The invention relates to a continuous ultrasonic pipeline emulsifier, comprising an emulsifier, wherein the emulsifier is provided with a cooling jacket. The continuous ultrasonic pipeline emulsifieris characterized in that the emulsifier is a pipeline type emulsifier; two ends of the pipeline type emulsifier are closed, one end of the pipeline type emulsifier is provided with a resin solution input port and a deionized water input port, and the other end of the pipeline type emulsifier is provided with an emulsion overflow port, an energy-gathered ultrasonic generator and a divergent ultrasonic generator; a resin solution input port is communicated with an outlet of a resin solution conveying constant-flux pump; an inlet of the resin solution conveying constant-flux pump is communicatedwith a resin solution conveying pipeline; the deionized water input port is communicated with an outlet of the deionized water conveying constant-flux pump; and an inlet of the deionized water conveying constant-flux pump is communicated with a deionized water conveying pipeline. According to the invention, ultrasonic waves are used for providing energy, and the emulsification process of the liquid resin in water is completed through the mechanical effect and the cavitation effect of the ultrasonic waves; and the continuous ultrasonic pipeline emulsifier has the characteristics of high production efficiency, low fixed asset investment, small equipment installation space, low operation cost, low energy consumption and the like.