In order to investigate the process parameters and forming force during the hot incremental forming of amorphous alloys, the tensile tests were conducted under different temperatures and strain rates, and a constitutive equation was established for amorphous alloy Zr35Ti30Be27.5Cu7.5 sheet. The influences of temperature, feeding amount and feeding rate on the forming performance of amorphous alloy were studied by finite element software ABAQUS. Then, a theoretical calculation of the forming force was conducted. The results show that the equivalent stress and forming force decrease with the increasing of temperature increases and increase with the increasing of feeding amount and feeding rate. The minimum wall thickness increases with the increasing of temperature, but decreases with the increasing of feeding amount and feeding rate. Under a specific condition, the simulated data of axial force was extracted, and a theoretical calculation of the forming force was conducted under the same conditions. By comparison, it is found that the theoretical calculation model of the forming force has excellent predictive accuracy, providing a theoretical basis for the design of incremental forming equipment and the selection of forming processes and parameters.