The invention discloses a continuous coating system and a coating method, belongs to the technical field of coating devices, and solves the problem that in the prior art, an organic semiconductor material cannot be used for accurately controlling the shape and a stacking structure of a film while being used for rapidly and efficiently preparing a film in a large area. The continuous coating system comprises a frame, a coating unit, a liquid supply device, a coating unit moving device, a temperature control base station unit and a base material conveying device, wherein the coating unit moving device, the temperature control base station unit and the base material conveying device are arranged on the frame, the base material conveying device is used for conveying a base material, the liquid supply device provides coating liquid for the base material, the coating unit is arranged on the coating unit moving device, and the coating unit moving device is used for controlling the distance and the angle between the coating unit and the base material, the coating unit is used for controlling the thickness and the appearance of a coating film by applying a shearing force to the coating liquid, the coating unit comprises a horizontal adjusting disc and a traction piece, and the horizontal adjusting disc is used for adjusting the pitch angle so as to ensure that the initial position of the traction piece is horizontal. According to the continuous coating system and a coating method, the preparation of the large-area orderly-arranged organic thin film is realized.