Flexible touch sensor based on short circuit effect and preparation method thereof

The invention discloses a flexible tactile sensor based on a short circuit effect. The flexible tactile sensor comprises an electrode used for collecting sensing signals, a polyimide film serving as a substrate, a conductive paint film used for constructing a resistor unit, a conductive film used for constructing a short circuit unit and a PE film used for protection. The electrode is arranged on the polyimide film, the conductive paint film is arranged on the electrode to form a resistor unit, the conductive film is placed on the resistor unit, and the conductive film is packaged by using a PE film. The sensor can realize pressure detection of multiple contacts, is simple in manufacturing process and relatively low in cost, and can be suitable for large-scale commercial application; a resistance type sensing mode is adopted, and a resistance unit and a short circuit unit are separated in an initial state, so that the anti-interference capability of the environment is greatly improved; the sensor base materia