The invention discloses an adjustable soft palate supporting body and an implantation method thereof. The soft palate supporting body is a flat implant made of a material capable of being implanted into a human body for a long time, and consists of a hard palate connecting end and a supporting body, wherein the supporting body is a flat implant which can be inserted into the soft palate; the supporting body is connected to the hard palate connecting end; a connecting structure connected with the hard palate and an adjusting mechanism are arranged at the hard palate connecting end; the connecting structure arranged at the hard palate connecting end is used for fixing the supporting body on the hard palate; and the adjusting mechanism arranged on the hard palate connecting end controls the motion state or bending curvature of the supporting body or the soft palate lifting degree. The adjusting mechanism is positioned in an open state under a wakeful state, and the supporting body implanted into the soft palate can move along the natural swing of the soft palate; and before a sleep state, the adjusting mechanism is positioned in a closed state, the supporting body can lift the soft palate, the pharyngeal airway is enlarged, and the aim of treating snore and obstructive sleep apnea hypopnea syndrome (OSAHS) is fulfilled.