The invention discloses an outdoor fiber jumper wire and a laying method thereof. The outdoor fiber jumper wire comprises an accommodation block. A port is arranged in the surface of the accommodation block. A fiber jumper wire body is inserted in the port. A clamp block 1 arranged in the port is fixedly connected to the surface of the fiber jumper wire body. A clamp groove in the top of the clamp block 1 is arranged in the accommodation block. The top end of the clamp block 1 is clamped in the clamp groove. A clamping device arranged at the bottom of the clamp block 1 is arranged in the accommodation block. According to the invention, the clamp block 1 is capable of cooperating with the clamp groove and a clamp block 2, so an effect of fixing the fiber jumper wire body is achieved; the fiber jumper wire can be fixed in the accommodation block; a user is enabled to conveniently bundling multiple fiber jumper wires together; a traction rope is prevented from be separated from the fiber jumper wires in use; the user is enabled to quickly lay the fiber jumper wires in the correct positions; and working efficiency for laying the fiber jumper wires is improved.