A double or triple zip-tied anastomosis surgery method is provided. The method includes circumferentially fastening a first and a second zip-ties around a tubular organ or a connecting region between two tubular organs, with the first and second zip-ties beside each other with a space therebetween; dissecting the tubular organ or the connecting region at the space between the first and second zip-ties, forming a first tubular portion with a first zip-tied end and a second tubular portion with a second zip-tied end; resecting a target segment from the second tubular portion, and centrally fastened the resected end; then rejoining the first and the second tubular portions together using a circular stapler, with staples encircling the first zip-tied end and the centrally fastened resected end; and cutting and removing tissues and zip-tie encircled by the staples to recreate a tubular pathway, with a smooth interface between the two tubular portions.