The invention discloses a scorpion seam receptor-based simulation flexible temperature sensor and a fabrication method thereof. The temperature sensor comprises a flexible substrate, a crack layer, aconduction layer and a temperature measurement layer, wherein the temperature measurement layer is used for generating bending and deformation according to temperature change, a plurality of cracks are arranged on the crack layer, the conduction layer comprises a first capacitor electrode and a second capacitor electrode which are respectively arranged at two sides of the cracks, and the conduction layer is used for obtaining a temperature change value according to a capacitance change value between the first capacitor electrode and the second capacitor electrode. When the temperature of a to-be-measured object is changed slightly, the temperature measurement layer is bent and deformed, the capacitance values of the first capacitor electrode and the second capacitor electrode are changed,so that the temperature is represented by a capacitor, and temperature detection is achieved. By a crack structure, the temperature sensor has ultrahigh sensitivity, and the requirement of the temperature sensor on the sensitivity is met.