The invention discloses an epoxy plastic packaged structure of a linear motor Hall element, and a manufacturing method thereof. The epoxy plastic packaged structure comprises a junction box and a Hallplate; a groove is formed on the upper surface of the junction box, an outlet hole is formed on the surface of the groove, and a circle of step is arranged all around the groove, and the Hall plate is electrically connected with a Hall element outgoing line; the Hall plate is fixed on the step and the Hall element outgoing line penetrates into the junction box from the outlet hole of the groove,and the length of the Hall plate is less than the distance between the left side and the right side of the step, and epoxy resin is filled between the groove bottom and each of the lower surface of the Hall plate and the upper surface of the Hall plate; an opening is formed on the front side of the junction box, and a junction box cover is fixed at the opening; a first aviation plug is fixed on the junction box cover, and the Hall element outgoing line in the junction box is electrically connected with the first aviation plug. The Hall plate is plastic-packaged by using the epoxy resin throughthe junction box, the Hall element on the Hall plate is separated from the external, thereby effectively preventing the external factor from damaging the Hall element.