The chainstitch cut after edge machine is high speed edge finishing machine. The operation of the chainstitch cut after edge machine is completely automatic to provide a fast and labor savings to the operation of short edge finishing. The chainstitch cut after edge machine automatically clamps the material, sews the exact length, trims the thread, cuts off the excess material and stops with the clamp raised ready for the next operation. There are no chained off ends to be trimmed. The sewn piece is completely finished and neat with securely locked stitching. Only one size of knife is used for all operations. High productivity of the chainstitch cut after edge machine can be expected due to high sewing speed up to 3800 spm. The single thread chainstitch sewing has no bobbin changes to delay the operation.