A sense amplifying method, applied in a memory having a memory cell and a reference cell, includes: charging the memory cell and the reference cell to have a cell current and a reference current, respectively; duplicating the cell current and the reference current to respectively generate a mirrored cell current via a first current path and a mirrored reference current via a second current path and equalizing a first voltage drop generated as the mirrored cell current flows by the first current path and a second voltage drop generated as the mirrored reference current flows by the second current path; and removing the equalization of the first voltage drop and the second voltage drop and adjusting first voltage drop and the second voltage drop according to a first current flowing by the first current path and a second current flowing by the second current path.