PURPOSE: A heater for a linear evaporation source is provided to prevent clogging by supplying enough heat to an evaporative material passing through the jetting unit of an evaporation source. CONSTITUTION: A heater for a linear evaporation source comprises a top heater(200) and fixing support rods(300). The top heater is formed by piling up multiple wire-type heating lines to be adjacent to each other. Each wire-type heating line enclosing a jetting unit of an evaporation source is wound in a loop shape. The fixing support rods bypass the wire-type heating lines in a bubble shape to prevent the wire-type heating lines from becoming separated from the outer wall surface of the jetting unit of the evaporation source.
