The invention relates to a pressure touch unit and a touch display device adopting the pressure touch unit. The pressure touch unit comprises a flexible circuit board and a piezoelectric film sensor arranged on the flexible circuit board, wherein the flexible circuit board comprises a first surface coverage film, a first circuit layer, a substrate, a second circuit layer and a second surface coverage film, which are arranged sequentially; a folding area and a non-folding area are arranged on the flexible circuit board; the folding area is used for installing the piezoelectric film sensor; the folding area comprises a first folding coverage area, a second folding coverage area and a bending area connected to the first and second folding coverage areas; the piezoelectric film sensor comprises a piezoelectric film; the piezoelectric film is arranged in the folding area; and furthermore, the upper and lower surfaces of the piezoelectric film are respectively adhered to the first circuit layer of the first and second folding coverage areas. The piezoelectric film sensor and the flexible circuit board are integrated; therefore, winding displacement design can be simplified; and assembly of the pressure touch unit in the touch display device can be facilitated.