The invention provides an adhesive injecting method for concrete cracks with continuous surfaces and non-communicated insides. The adhesive injecting method comprises selecting a strip-shaped poly vinyl chloride (PVC) transparent soft plate, and arranging injector bases according to a certain distance on the upper surface of the PVC transparent soft pate; coating adhesives on the periphery of the PVC transparent soft plate provided with the injector bases and on the surfaces of the cracks along the length direction of the concrete cracks, guaranteeing complete sealing of the periphery and avoiding seepage of the adhesives, and completely covering the PVC transparent soft plate on the cracks and forming a certain adhesive flow space among the PVC transparent soft plate the concrete cracks; mounting injectors fully filled with the adhesives on the injector bases, and injecting the adhesives into the concrete cracks in sequence; and removing the injectors and the PVC transparent soft plate after the adhesives are fully filled in the cracks and are solidified. The certain adhesive flow space is formed among the PVC transparent soft plate and the concrete, adhesive injecting effect can be greatly improved, adhesive loss can be reduced, and technical benefits and economical benefits are notably improved.