The invention discloses a heat insulation cover for triggering medical therapy through temperature for sports trainings. The cover comprises a cover main body and a medical therapy cloth sandwiching layer which fills the interior the cover main body and is fixed to the cover main body. The cover main body is of a double-layered structure. An accommodation cavity is arranged in the cover main body.The medical therapy cloth sandwiching layer comprises a central interlayer, a first isolation layer and a second isolation layer. The first isolation layer is arranged on one side face of the centralinterlayer, is attached to the central interlayer and is used for protecting the central interlayer. The second isolation layer is arranged on the other side face of the central interlayer, is attached to the central interlayer and is used for protecting the central interlayer. According to the invention, when a user wears the heat insulation cover, through the body temperature, Chinese herbal medical ingredients of the central interlayer are transported to the skin of the users, and enters the body of the user through pores, so effects of promoting blood circulation, relieving fatigues and improving physical quality of the user are achieved.