The application discloses touching device and touch display apparatus, this touching device includes: optical film layer, including first upper surface, first surface, with crossing first side in first upper surface and first surface and the second side relative with first side, optical film layer takes place to deform under the effect of pressure, the light source sets up with first side relatively for transmitting light signal, first light signal reception module is with relative setting the in second side for receive the emergent light signal of optical film layer's second side, wherein, corresponding change takes place according to optical film layer's deformation for the emergent light signal, the photoelectric signal conversion module for change the emergent light signal into the corresponding signal of telecommunication, and confirm the size of pressure according to the signal of telecommunication. The utility model provides a touching device and touch display apparatus can confirm the size of its upward pressure through the change that detects the light signal and the signal of telecommunication.