Decoding method, memory control circuit unit and memory storage device

The invention provides a decoding method, a memory control circuit unit and a memory storage device. The method comprises the following steps: receiving a plurality of instructions; according to a first read instruction in the plurality of instructions, reading a first entity programming unit by using a plurality of first reading voltage groups in the plurality of reading voltage groups to respectively obtain a plurality of first data, executing a first decoding operation on each first data in the plurality of first data, wherein the number of the plurality of first read voltage groups is smaller than that of the plurality of read voltage groups; and executing other instructions different from the first read instruction in the plurality of instructions when the execution of the first decoding operation on each first data in the plurality of first data fails. 本发明提供一种解码方法、存储器控制电路单元以及存储器存储装置，所述方法包括：接收多个指令；根据所述多个指令中的一第一读取指令，使用多个读取电压组中的多个第一读取电压组读取一第一实体程序化单元以分别获得多个第一数据，并对所述多个第一数据中的每一个第一数据执行一第一解码操作，其中所述多个第一读取电压组的数量小