Connecting structure of flitch for construction

The utility model relates to a connecting structure of a flitch for construction. The connecting end of the flitch is of a tooth shape, and the connecting end of another flitch butted with the connecting end is of a tooth shape which is matched with the connecting end. One layer of glue is coated between tooth surfaces. The length of the tooth is 20 to 25mm, and the width of the tooth root is 7.5 to 8.5mm. Compared with the prior art, the waste short flitch can be lengthened and reused by using the connecting structure of the flitch for construction. The strength of the joint of the connected flitch is close to the strength of the original flitch due to the appropriate processing technologies and measures, so that the flitch can be used safely. Some building site totally uses 700 cubic meter of flitch, wherein about 250 cubic meter of flitch lengthened by the connecting mode is used and 300 thousand Yuan is saved. The connecting structure has simple structure and low production cost, can save timber greatly,