Decoding method, memory control circuit unit and memory storage device

The invention discloses a decoding method, a memory control circuit unit and a memory storage device. The method comprises: receiving a reading instruction used for reading first data; obtaining a current first temperature of the rewritable nonvolatile memory module according to the reading instruction; according to the reading instruction, obtaining a second temperature of the rewritable nonvolatile memory module when the first data is written into the first entity programming unit; and selecting a first decoding operation according to the first temperature and the second temperature, and executing the first decoding operation. 解码方法、存储器控制电路单元以及存储器存储装置。所述方法包括：接收用以读取第一数据的读取指令；根据读取指令，获得可复写式非易失性存储器模块目前的第一温度；根据读取指令，获得在将第一数据写入至第一实体程序化单元时可复写式非易失性存储器模块的第二温度；以及根据第一温度以及第二温度，选择第一解码操作，并执行第一解码操作。