The invention discloses a construction method for suspension bridge main cable strand entering a tunnel-type-anchor through secondary traction. The construction method is characterized in that the construction method comprises the following steps that (1) the connection between a pull machine and a cable strand is relieved; (2) retroversion is conducted on a hauling cable; (3) a tunnel-type-anchor pull machine is connected with the cable strand; (4) treatment is conducted on erected cable strands; and (5) traction and be-in-place are conducted. In a tunnel-type-anchor which has a narrow space, under the condition that the main cable traction adopts a common pull machine, position conflicts often occurs on the main cable and a loose cable saddle gate frame in the tunnel-type-anchor, so once traction and be-in-place cannot be achieved. According to the construction method for suspension bridge main cable strand entering the tunnel-type-anchor through secondary traction, the main cable strand can effectively and rapidly be in place to a front anchor surface smoothly through secondary traction, the traction efficiency of the main cable can be improved, and the cost is saved.