A solar heat collector comprising: a dual-axial tracking solar type reflective mirror group; and heat collection means configured to collect light from the reflective mirror group to obtain heat, wherein: a heating medium is caused to move from a first end of the heat collection means on an upstream to a second end on an opposite side on a downstream, the heat collection means includes a continuous heating medium flow passage including a combination of a first heat collection pipe and a second heat collection pipe, wherein the first heat collection pipe and the second heat collection pipe have a double-pipe structure including an inner metal pipe, a glass pipe, and a vacuum space, the heating medium flowing through the metal pipe, the glass pipe being disposed outside the metal pipe, the vacuum space being disposed between the metal pipe and the glass pipe, wherein the second heat collection pipe has an amount of heat collection per unit area larger than the first heat collection pipe, and this is achieved by forming different wavelength-selective films on the respective surfaces of the metal pipes, and the number of dual-axial tracking solar type reflective mirrors included in the reflective mirror group, the number of the reflective mirrors sending solar light to the first heat collection pipe, and the number of the reflective mirrors sending the solar light to the second heat collection pipe meet the relationships of N=nl+n2, and n2>n1. a dual-axial tracking solar type reflective mirror group; and heat collection means configured to collect light from the reflective mirror group to obtain heat, wherein: a heating medium is caused to move from a first end of the heat collection means on an upstream to a second end on an opposite side on a downstream, the heat collection means includes a continuous heating medium flow passage including a combination of a first heat collection pipe and a second heat collection pipe, wherein the first heat collection pipe and the second heat collection pipe have a double-pipe structure including an inner metal pipe, a glass pipe, and a vacuum space, the heating medium flowing through the metal pipe, the glass pipe being disposed outside the metal pipe, the vacuum space being disposed between the metal pipe and the glass pipe, wherein the second heat collection pipe has an amount of heat collection per unit area larger than the first heat collection pipe, and this is achieved by forming different wavelength-selective films on the respective surfaces of the metal pipes, and the number of dual-axial tracking solar type reflective mirrors included in the reflective mirror group, the number of the reflective mirrors sending solar light to the first heat collection pipe, and the number of the reflective mirrors sending the solar light to the second heat collection pipe meet the relationships of N=nl+n2, and n2>n1. a heating medium is caused to move from a first end of the heat collection means on an upstream to a second end on an opposite side on a downstream, the heat collection means includes a continuous heating medium flow passage including a combination of a first heat collection pipe and a second heat collection pipe, wherein the first heat collection pipe and the second heat collection pipe have a double-pipe structure including an inner metal pipe, a glass pipe, and a vacuum space, the heating medium flowing through the metal pipe, the glass pipe being disposed outside the metal pipe, the vacuum space being disposed between the metal pipe and the glass pipe, wherein the second heat collection pipe has an amount of heat collection per unit area larger than the first heat collection pipe, and this is achieved by forming different wavelength-selective films on the respective surfaces of the metal pipes, and the number of dual-axial tracking solar type reflective mirrors included in the reflective mirror group, the number of the reflective mirrors sending solar light to the first heat collection pipe, and the number of the reflective mirrors sending the solar light to the second heat collection pipe meet the relationships of N=nl+n2, and n2>n1.