NOVELTY - The coating has an infrared reflective layer (2) formed on a substrate (1). A thermal-matching metal absorption layer (31) is formed on the infrared reflective layer. A semiconductor absorption layer (32) i.e. germanium layer, is formed on the thermal-matching metal absorption layer. An anti-reflection layer (4) is formed on the semiconductor absorption layer. Thickness of the germanium layer of the absorption layer is about 10-30 nm. Thickness of the thermal-matching metal absorption layer is about 2-20 nm.    USE - Solar spectrum selective absorption coating for use in solar heat collectors.    ADVANTAGE - The metal layer serves as a thermal matching layer and participates in interference absorption of an entire film system, so that absorptance of the film system is increased without adversely impacting infrared reflection property. The coating increases absorption efficiency without increasing thickness of the intrinsic semiconductor absorption layer and impacting infrared emissivity of the coating. The coating includes less expensive metal that functions as an absorption layer to achieve better thermal matching between the semiconductor absorption layer and the infrared reflective layer, so that thermal expansion coefficient between the semiconductor absorption layer and the infrared reflective layer is determined, thus improving thermal stability of the semiconductor layer in the medium-temperature range. The coating introduces titanium absorption layer to improve thermal stability and solar thermal energy conversion efficiency of the selective absorption coating.    DETAILED DESCRIPTION - The substrate is made of glass, aluminum, copper or stainless steel. An INDEPENDENT CLAIM is also included for a solar spectrum selective absorption coating manufacturing method.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a structure of a solar spectrum selective absorption coating.    Substrate (1)    Infrared reflective layer (2)    Anti-reflection layer (4)    Thermal-matching metal absorption layer (31)    Semiconductor absorption layer (32)