NOVELTY - The apparatus has a flow limiting and adjusting layer (130) being a rectangular sheet formed with a set of flow limit holes (1301) corresponsive to crucibles. A flow channel adjusting element is an interconnected structure provided with a flow inlet (1321A) and a flow outlet (1322B), where the flow inlet is corresponsive to position of the flow limit holes. A mixed layer (134) is an I-shaped sheet structure. A linear evaporation layer (136) is the rectangular sheet provided with a linear source evaporation opening (1361) tapered from ends to a middle of the linear evaporation layer.    USE - Linear evaporation apparatus for use in a solar cell industry.    ADVANTAGE - The apparatus provides a thermal insulation chamber mounted in a reaction chamber to improve utilization of different types of evaporation materials, thus avoiding unnecessary waste or loss of materials caused by factors. The apparatus improves quality of a thin film while lowering manufacturing and material costs. The apparatus ensures vapor of reactive evaporation material to be reacted with evaporated vapor so as to achieve effects of improving utilization of the evaporation material and lowering the production cost in an effective manner. The apparatus provides high-temperature environment inside the thermal insulation chamber to crack vapor of the reactive evaporation material into smaller molecular groups, so that manufactured thin film can be uniform and dense, and quality of the thin film can be improved.    DETAILED DESCRIPTION - The apparatus provides reactive evaporation material that is selected from a group consisting of selenium, sulfur and antimony.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a linear evaporation apparatus provided with gas of evaporation material in a mixing chamber.    Flow limiting and adjusting layer (130)    Mixed layer (134)    Linear evaporation layer (136)    Flow limit hole (1301)    Flow inlet (1321A)    Flow outlet (1322B)    Linear source evaporation opening (1361)