Abstract: A cyclic sewing machine includes a cam disc provided at opposite surfaces thereof with a first cam groove and a second cam groove, respectively. A first transmitting member has movement derived from the first cam groove operatively selectively imparted thereto and a second transmitting member has movement derived from the second cam groove selectively imparted thereto. First and second link mechanisms are connected to the first and second transmitting members, respectively. The cyclic sewing machine also includes a switching mechanism for selectively operatively connecting the first cam groove to the second link mechanism and the second cam groove to the first link mechanism, respectively. Thus, in the cyclic sewing machine, bar tacks may be rotated 90 degrees by manipulating the switching mechanism.