PROBLEM TO BE SOLVED: To enable line drawing by always maintaining a constant low pressing force of a drawing means, and to stably set a desired constant value of a film width and a thickness of a film of a functional material formed in a pattern shape. A line drawing device and a line drawing method of a functional material capable of the present invention are provided. SOLUTION: A drawing means for drawing a functional material linearly on a base material by contacting a drawing portion with a base material, and a pressing force applying means for bringing a drawing portion of the drawing means into contact with a base material with a constant pressing force. It has a base material fixing means for fixing and holding the base material and a relative moving means for relatively moving the drawing means in contact with the base material, and the pressing force applying means can rotate a small amount reciprocatingly. A line drawing device in which a drawing means is arranged at one end of a seesaw extending in both directions from the center of oscillating rotation, and a counterweight for adjusting a pressing force is arranged at one end on the opposite side. [Selection diagram] Fig. 1
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