The 1 hour isochronal annealing treatment has been made on amorphous alloy Zr87.7Si12.3. The changes of the superconducting critical parameters, Tc and H(C2) and their transition width have been measured for different annealing temperatures. The different change laws of metal-metal type amorphous alloys were observed. The experimental results-were discussed in connection with the toplogical short range order and the chemical short range order in the process of structural relaxation and the corresponding crystallization mechanism.