A method for 3D voltage type TSV signal transmission, comprising transmitting a full swing signal of data with a first voltage through TSVs for each one of a plurality of slave devices to determine a transmission time required for data transmission to a master device. Then, full swing signal is sensed by the master device for reduce the first voltage to be a small swing signal with lower voltage. Logic “0” signals or logic “1” signals with the lower voltage are transmitted through the TSVs by the plurality of slave devices. It is sharing charge and balancing voltage level to a mean value for the logic “1” signals or the logic “0” signals by the master device.