Intermittent serrated flows reflecting the evolution of shear bands, which is characterized by spatiotemporal disordered distribution, can be seen during compressive plastic deformation in amorphous alloys. Chaotic, self-organized criticality（SOC）, classical statistical analysis, fractal, and mean-filed theory model are used to investigate the dynamics of plastic flows in response to variant conditions. It is found that the serration dynamics significantly depends on intrinsic structural properties, sample size, stiffness of loading machine, temperature, and strain rate, which revealing the evolution of shear-band instability. SOC-like state can be obtained in ductile materials with small sample size under low temperatures or high strain rates. It hints about shear bands move in a scale-free intermittent fashion and the great interaction of shear bands. The largest shear-banding rate is indicated by the largest fractal dimension at low temperature, which shows an enhanced fractal behavior. Simple mean-filed theory model (MFT) verifies that plasticity can be tuned by imposed strain rates. These are of great implication for the exploration of plasticity in amorphous alloys.