The present invention relates to a travel mug that is made of metal materials and can be used for microwave oven, comprising: a container having a double-layered structure with an inner shell and an outer shell, wherein said inner shell and said outer shell are joined by a joint in such a way that a cavity is provided therebetween, and a heat transfer medium is filled to at least part of said cavity; a first neat transfer member and a second transfer member formed from the bottom of said outer shell; a handle formed on one side of said outer shell; a pressure release device formed at one side of said outer shell; and a lid having a receiver part forming a concave portion to receive said joint.