An assembled support frame of a continuous track is disclosed and belongs to the field of agricultural machinery. The assembled support frame of the continuous track is characterized in that the integrated-welded support frame of the continuous track is divided into two parts, wherein the upper part is a supporting frame; the lower part is a trolley frame; the supporting frame and the trolley frame are connected by bolts, nuts and spring washers; and the position of driving wheels can be adjusted to the front and back relative to the center position of a continuous track walking system. The assembled support frame of the continuous track has the advantages of simple production and processing technology and lower processing cost, and is suitable for the size of conveyers of headers of different reapers.