A pallet clamp apparatus for clamping a pallet to a pair of forks provided in a forklift, comprising: a housing disposed adjacent to each of the pair of forks ; a locking member , at least a portion of the locking member protruding to the outside of the housing to fix the pallet ; a spring member configured to elastically press the locking member toward an inner side of the fork in a lateral direction; and a release member configured to release fixing of the locking member by pressing the spring member , wherein the locking member comprises: a pair of main plates spaced apart in a vertical direction and disposed parallel to each other; a support plate disposed at an outer end of the main plate , the outer end facing an adjacent fork ; and a first stopper disposed on an inner end of the main plate , the inner end facing toward the inner side of the fork , wherein the support plate and the first stopper are positioned between the two main plates , characterized in that an inner surface of the support plate is in contact with the release member and a socket ring configured to fix an outer end of the spring member is disposed on an outer surface of the support plate , and in that the socket ring is disposed to be eccentric toward the front in an outer surface of the support plate . a housing disposed adjacent to each of the pair of forks ; a locking member , at least a portion of the locking member protruding to the outside of the housing to fix the pallet ; a spring member configured to elastically press the locking member toward an inner side of the fork in a lateral direction; and a release member configured to release fixing of the locking member by pressing the spring member , wherein the locking member comprises: a pair of main plates spaced apart in a vertical direction and disposed parallel to each other; a support plate disposed at an outer end of the main plate , the outer end facing an adjacent fork ; and a first stopper disposed on an inner end of the main plate , the inner end facing toward the inner side of the fork , wherein the support plate and the first stopper are positioned between the two main plates , characterized in that an inner surface of the support plate is in contact with the release member and a socket ring configured to fix an outer end of the spring member is disposed on an outer surface of the support plate , and in that the socket ring is disposed to be eccentric toward the front in an outer surface of the support plate . a pair of main plates spaced apart in a vertical direction and disposed parallel to each other; a support plate disposed at an outer end of the main plate , the outer end facing an adjacent fork ; and a first stopper disposed on an inner end of the main plate , the inner end facing toward the inner side of the fork , wherein the support plate and the first stopper are positioned between the two main plates , characterized in that an inner surface of the support plate is in contact with the release member and a socket ring configured to fix an outer end of the spring member is disposed on an outer surface of the support plate , and in that the socket ring is disposed to be eccentric toward the front in an outer surface of the support plate . <EOS>