Computational mechanic simulation of glass forming processes such as precision lens molding, hot embossing, and compression molding require thermo-mechanical glass property data as inputs. In the present study, thermo-mechanical properties of BK7 optical glass at elevated temperatures have been investigated. In the transition temperature range where glass behavior is viscoelastic, these properties are determined by simple compression test. A specimen was designed that did not allow slip between dies. Using experimental data obtained from simple compression test, the constants of elasticity modulus in Generalized Kelvin model can be extracted. In this model, the stress is divided into two deviatoric and hydrostatic forms. The coefficient of bulk and shear modulus of BK7 optical glass are obtained by non-linear curve fitting in MATLAB. In continuous, the obtained data were used in simulation of disk compression test using ABAQUS software. Comparison of experimental and simulation results at different velocities of 0.008 and 0.01 mm/min show good agreement between them. This agreement indicates that the model correctly describes the behavior of matter. Also, it is seen that increase in strain rate leads to increases in material resistance against deformation and also increase in vertical force. In the second part of this study, the frictional stick–slip behavior of BK7optical glass at elevated temperature is investigated. Spring and damper in parallel are used to model the Stick-Slip frictional behavior in this study. Then, the model implemented in ABAQUS software by using FRIC subroutine. The results of simulation for different conditions are compared with pin on disk experimental data. Comparison shows that stick-slip friction is a function of loading rate and normal surface pressure. Keywords : Linear Viscoelasticity, Simple Compression Test, Generalized Kelvin Model, Elasticity Modulus, Bulk Modulus, Shear Modulus, Optical Glass BK7, Stick-Slip Friction, Pin on Disk Test, FRIC subroutine.