The invention discloses a medical ice pad manufacturing method. The method includes steps: S1, shell manufacturing, to be more specific, manufacturing an ice pad 
barrel with a limiting 
handle from nontoxic environment-friendly PVC plastic, wherein the total length of the ice pad 
barrel is 10CM, and the limiting 
handle is 3CM and in a hollow structure; S2, 
coolant filling, to be more specific, adopting a filling 
machine for filling the ice pad 
barrel, making a limiting mark on the surface of the ice pad barrel, and stopping 
coolant filling when reaching the limiting mark. By adoption of the nontoxic environment-friendly PVC as a base material, easiness in 
processing and production is achieved; by replacement of heat seal treatment with cold seal adhesives, 
coolant damages can be avoided; byuse of a 
silicon rubber plug for sealing the limiting 
handle and adoption of a PVC plastic rod for expansion of the 
silicon rubber plug, the 
silicon rubber plug completely contacts with a notch of the handle to achieve a great sealing effect; by adoption of a 
polyvinyl alcohol-
borax efficient coolant, later-period utilization effects can be effectively improved, and nontoxicity, environmental friendliness and easiness in 
processing and utilization of medical ice pads are realized.