We investigate the piezoelectricity of the hBN/1L-MoS2 van der Waals heterostructure membrane on the microtrench cavity. It is demonstrated that the 1L-MoS2 can be pulled together with the multilayered hBN by the back-gate bias tuning due to the Coulomb interaction. Furthermore, we show the response of the piezoelectric voltage generated between graphite source-drain electrodes under the cyclical DC back-gate voltage.