A non-contact power supply device (1, 1B) for a substrate production line comprising: a power supply element provided in a power supply unit; an AC power supply circuit configured to supply AC power to the power supply element; a power receiving element, being provided in a power receiving unit which faces the power supply element, which is electrically coupled to the power supply element, and which is configured to receive AC power in a non-contact manner; a power receiving circuit configured to generate a received voltage by converting the AC power received by the power receiving element, and to output the received voltage to an electric load, and a first resonant element and a second resonant element connected the power supply element and the power receiving element, respectively, to configure a corresponding resonance circuit, wherein the non-contact power supply device (1, 1B) is characterized by further comprising: a first resonant substrate (65, 65B) configured to include the first resonant element a second resonant substrate (75, 75A, 75B) configured to include the second resonant element, and i) a power supply substrate (61, 61B) configured to include the AC power supply circuit, or ii) the power supply substrate (61, 61B) configured to include a part of the AC power supply circuit and the first resonant substrate (65, 65B) configured to include a remaining part of the AC power supply circuit; and a) a power receiving substrate (71, 71A, 71B) configured to include the power receiving circuit, or b) the power receiving substrate (71, 71A, 71B) configured to include a part of the power receiving circuit and the second resonant substrate (75, 75A, 75B) configured to include a remaining part of the power receiving circuit; wherein the power supply substrate (61, 61B), the power receiving substrate (71, 71A, 71B), the first resonant substrate (65, 65B), and the second resonant substrate (75, 75A, 75B) are separated from one another. a power supply element provided in a power supply unit; an AC power supply circuit configured to supply AC power to the power supply element; a power receiving element, being provided in a power receiving unit which faces the power supply element, which is electrically coupled to the power supply element, and which is configured to receive AC power in a non-contact manner; a power receiving circuit configured to generate a received voltage by converting the AC power received by the power receiving element, and to output the received voltage to an electric load, and a first resonant element and a second resonant element connected the power supply element and the power receiving element, respectively, to configure a corresponding resonance circuit, wherein the non-contact power supply device (1, 1B) is characterized by further comprising: a first resonant substrate (65, 65B) configured to include the first resonant element a second resonant substrate (75, 75A, 75B) configured to include the second resonant element, and i) a power supply substrate (61, 61B) configured to include the AC power supply circuit, or ii) the power supply substrate (61, 61B) configured to include a part of the AC power supply circuit and the first resonant substrate (65, 65B) configured to include a remaining part of the AC power supply circuit; and a) a power receiving substrate (71, 71A, 71B) configured to include the power receiving circuit, or b) the power receiving substrate (71, 71A, 71B) configured to include a part of the power receiving circuit and the second resonant substrate (75, 75A, 75B) configured to include a remaining part of the power receiving circuit; wherein the power supply substrate (61, 61B), the power receiving substrate (71, 71A, 71B), the first resonant substrate (65, 65B), and the second resonant substrate (75, 75A, 75B) are separated from one another. a first resonant substrate (65, 65B) configured to include the first resonant element a second resonant substrate (75, 75A, 75B) configured to include the second resonant element, and i) a power supply substrate (61, 61B) configured to include the AC power supply circuit, or ii) the power supply substrate (61, 61B) configured to include a part of the AC power supply circuit and the first resonant substrate (65, 65B) configured to include a remaining part of the AC power supply circuit; and a) a power receiving substrate (71, 71A, 71B) configured to include the power receiving circuit, or b) the power receiving substrate (71, 71A, 71B) configured to include a part of the power receiving circuit and the second resonant substrate (75, 75A, 75B) configured to include a remaining part of the power receiving circuit; i) a power supply substrate (61, 61B) configured to include the AC power supply circuit, or ii) the power supply substrate (61, 61B) configured to include a part of the AC power supply circuit and the first resonant substrate (65, 65B) configured to include a remaining part of the AC power supply circuit; and a) a power receiving substrate (71, 71A, 71B) configured to include the power receiving circuit, or b) the power receiving substrate (71, 71A, 71B) configured to include a part of the power receiving circuit and the second resonant substrate (75, 75A, 75B) configured to include a remaining part of the power receiving circuit; wherein the power supply substrate (61, 61B), the power receiving substrate (71, 71A, 71B), the first resonant substrate (65, 65B), and the second resonant substrate (75, 75A, 75B) are separated from one another.