The invention provides a transparent and flexible multifunctional sensor and a production method thereof. The transparent and flexible multifunctional sensor comprises a flexible substrate and is characterized in that electrodes are arranged at two ends of the flexible substrate, a flexible covering layer covers the flexible substrate and the electrodes, the flexible substrate is provided with a strip-shaped boss, the lateral walls on two sides of the strip-shaped boss are coated with composite functional layers, and two ends of the composite functional layers are connected with the two electrodes. By the arrangement, the transparent and flexible multifunctional sensor is capable of detecting and quantitatively responding to various stretching, squeezing, bending, torsion and light intensity change signals, high in sensitivity, stable in performance and extremely high in transmittance.