The present invention relates to a circuit board with a concealed component. The present invention is characterized in that the present invention comprises a plurality of concealed components and at least a transmission line. The transmission line is electrically connected with more than one concealed component. The transmission line is provided with a transmission line terminal circuit to form an electric loop. The transmission line terminal circuit is arranged in open circuit. The transmission line terminal circuit directly grounds the transmission line. The present invention is capable of greatly cutting down the time of testing the concealed component in the manufacturing process and improving the manufacturing efficiency. The cost of manufacture increased because of time taking and labor taking is reduced. In addition, the degree of accuracy of the surveying of the concealed component is increased by the method.