Construction method of cable holder and cable holder

The invention discloses a construction method of a cable holder and the cable holder. The construction method comprises the following steps that a ground embedded part and a floor embedded part are mounted; an upper cable support is fixed to the floor embedded part, a lower cable support is fixed to the ground embedded part, and the upper cable support and the lower cable support are arranged oppositely; a bracket is connected between the upper cable support and the lower cable support; and a support arm is fixed to the bracket. Through the construction method, the process is simple, operation is convenient, manpower and material resources are saved, the method is friendlier to environment, secondary recycling can be realized, and cost is reduced.