The invention discloses a flexible mechanics patterning sensor, which comprises a first flexible substrate layer, a second flexible substrate layer and a flexible sensitivity layer, wherein a first pattern is etched on the lower surface of the first flexible substrate layer, a second pattern is etched on the upper surface of the second flexible substrate layer, the upper surface of the first flexible substrate layer and the lower surface of the second flexible substrate layer are spliced, the flexible sensitivity layer is compounded to the upper surface of the second flexible substrate layer by a chemical method; the first flexible substrate layer, the second flexible substrate layer and the flexible sensitivity layer form an integral structure, and a flexible packaging layer is compoundedout of the integral structure. The sensor is also electrically connected with two electrodes, wherein two electrodes both penetrate through the flexible packaging layer and extend out of the flexiblepackaging layer. The second pattern is etched on the second flexible substrate layer to improve the own sensitivity and the tensile property of the flexible sensitivity layer, and different structures are designed to meet different sensor requirements.