A strap fix structure for a goggle mask with a strap body and two side buckles is provided. The strap body includes a middle portion, two tail end portions and two buckle attachments. The tail end portions are disposed on two opposite sides of middle portion and the buckle attachments are disposed on distal ends of tail end portions respectively. The side buckles are disposed on two sides of a frame portion of the goggle mask respectively. The two tail end portions of the strap body are firstly passed through the two side buckles respectively and then folded up. The two buckle attachments disposed on the distal ends buckle folded parts of the two tail end portions to other parts of the two tail end portions respectively. The other parts are not passed through the side buckles.