The utility model discloses a hinge fixing piece of a calendar, which is installed on a supporting body and used for fixing a hinge, and comprises a fixing piece and a bolt piece, the fixing piece is provided with a transverse part and a limiting part which is positioned at one end of the transverse part and is bent upwards, one end of the transverse part far away from the limiting part is provided with a bolt hole, and the bolt piece comprises a bolt nail and a bolt head. The width of the bolt head is larger than that of the bolt hole, so that the lower end face of the bolt head is placed on the transverse part after the bolt nail is inserted into the bolt hole. The supporting body and the hinge are both provided with through grooves, during assembling, the end, away from the limiting part, of the transverse part is inserted into the through grooves, the hinge is hung or placed on the transverse part, the fixing piece is pushed inwards till the limiting part is attached to the hinge, the hinge is squeezed by the limiting part and the side wall of the supporting body to be in a compressed state, the hinge can be stabilized, and the hinge is not prone to being damaged. When a user replaces the loose leaf, the fixing piece is pushed outwards, the limiting part is made to be away from the loose leaf, the loose leaf can be easily taken out or placed, the steps of dismantling or reassembling and the like are not needed, and the user can use the loose leaf conveniently.