<p>Compared with conventional alloys, amorphous alloys offer a distinct advantage in the absence of crystalline defects, thereby exhibiting superior performance. Meanwhile, the study of thermophysical properties serves as a core foundation for understanding the melting and solidification mechanisms of materials, calculating key thermodynamic parameters, and evaluating glass-forming ability (GFA), providing indispensable data support for the development and application of advanced materials such as bulk metallic glasses. Among various amorphous alloys, Zr-based amorphous alloys exhibit excellent GFA. This study investigates the thermophysical properties and GFA of five Zr-based amorphous alloys (Zr₅₀Cu₅₀, Zr₅₀Cu₄₀Al₁₀, Zr₅₂Cu₃₂Ni₆Al₁₀, Zr₄₆Cu_35.64Ni_4.18Al₁₀Ag_4.18, and Zr₅₁Cu₃₃Ni₄Al_8.5Ag_1.5Nb₂). It measures parameters such as density, surface tension, and viscosity using electrostatic levitation and the droplet oscillation method and combines fitting and analysis with the VFT equation and Arrhenius equation. The results show the following: GFA does not improve with an increase in the number of elements. Based on the evaluation of glass-forming ability parameters, mixing entropy, and atomic size difference, all four alloys except for Zr₅₀Cu₅₀ exhibit strong glass-forming ability. The thermophysical properties of the alloys exhibit regular changes with temperature–density, surface tension, and viscosity decrease with increasing temperature. Both Zr₅₂Cu₃₂Ni₆Al₁₀ and Zr₅₁Cu₃₃Ni₄Al_8.5Ag_1.5Nb₂ alloys possess the highest viscosity and exhibit the optimal GFA.</p>