The present invention is to provide a head relaxing pillow, which is made of an elastic material and includes a supporting main body having a top for supporting the neck of a user who lies face up and a bottom concavely provided with a recess, two contact portions each having one end connected to one of the two corresponding ends of the supporting main body and the other end corresponding in configuration to one of the user's parietal bones, and a pressing portion extending from one side of the supporting main body and located between the contact portions. The supporting main body is provided with two sunken portions which are adjacent to two corresponding ends thereof respectively. Thus, when the user's neck and head are resting on the supporting main body and the contact portions respectively, the two sunken portions are corresponding in position to the user's temporal bones respectively.