A combination structure, comprising: a locking set comprising a locking plate and a locking piece , the locking plate comprising a plate body and a plurality of blocking pieces , wherein the plurality of blocking pieces are arranged in pair and spacedly on the plate body , an insertion space is defined on the locking plate , and the locking plate is rotatable; and a track , comprising a column and a sliding slot disposed on the column , the column comprising a fixing plate and a pair of wings bent and extended from two sides of the fixing plate , wherein the pair of wings and the sliding slot are arranged on two sides of the fixing plate opposite to each other; wherein, the track is combined through the locking plate being configured to rotate to make the pair of wings penetrate into the insertion space and be blocked by the blocking pieces ; characterized in that said combination structure further comprises: a decorative rod , comprising a rod body and an L-shaped opening disposed on a side of the rod body , the L-shaped opening extended from one end of the rod body to another end of the rod body ; a plurality of said locking sets , arranged spacedly in the L-shaped opening ; wherein the track is further combined in the L-shaped opening ; wherein the decorative rod further comprises a pair of decorative heads , and the pair of decorative heads are combined on two ends of the rod body ; and wherein the decorative rod further comprises a pair of end plates and a plurality of screws , and the pair of end plates are respectively arranged between each of the decorative heads and each end of the rod body through the screws . a locking set comprising a locking plate and a locking piece , the locking plate comprising a plate body and a plurality of blocking pieces , wherein the plurality of blocking pieces are arranged in pair and spacedly on the plate body , an insertion space is defined on the locking plate , and the locking plate is rotatable; and a track , comprising a column and a sliding slot disposed on the column , the column comprising a fixing plate and a pair of wings bent and extended from two sides of the fixing plate , wherein the pair of wings and the sliding slot are arranged on two sides of the fixing plate opposite to each other; wherein, the track is combined through the locking plate being configured to rotate to make the pair of wings penetrate into the insertion space and be blocked by the blocking pieces ; characterized in that said combination structure further comprises: a decorative rod , comprising a rod body and an L-shaped opening disposed on a side of the rod body , the L-shaped opening extended from one end of the rod body to another end of the rod body ; a plurality of said locking sets , arranged spacedly in the L-shaped opening ; wherein the track is further combined in the L-shaped opening ; wherein the decorative rod further comprises a pair of decorative heads , and the pair of decorative heads are combined on two ends of the rod body ; and wherein the decorative rod further comprises a pair of end plates and a plurality of screws , and the pair of end plates are respectively arranged between each of the decorative heads and each end of the rod body through the screws . a decorative rod , comprising a rod body and an L-shaped opening disposed on a side of the rod body , the L-shaped opening extended from one end of the rod body to another end of the rod body ; a plurality of said locking sets , arranged spacedly in the L-shaped opening ; wherein the track is further combined in the L-shaped opening ; wherein the decorative rod further comprises a pair of decorative heads , and the pair of decorative heads are combined on two ends of the rod body ; and wherein the decorative rod further comprises a pair of end plates and a plurality of screws , and the pair of end plates are respectively arranged between each of the decorative heads and each end of the rod body through the screws . <EOS>