A non-volatile memory (NVM) apparatus and an empty page detection method thereof are provided. The NVM apparatus includes a NVM and a controller. The controller reads the content of a memory page of the NVM. The controller performs Low Density Parity Check (LDPC) decoding for at least one codeword of the memory page to obtain a decoded codeword and a check-result vector. The controller determines that the memory page is not an empty page when the LDPC decoding for the codeword is successful. The controller counts an amount of the bits being 1 (or 0) in the check-result vector when the LDPC decoding for the codeword is fail. Based on the amount of the bits being 1 (or 0) in the check-result vector, the controller determines whether the memory page is an empty page.