[Purposes] In order to study the influence of viscous dampers on the mechanical properties of pseudo-classic architecture, a comparative experiment for lintel-column joint specimens of pseudo-classic architecture was carried out. [Methods] Six lintel-column joints of pseudo-classic architecture were designed and produced, including three dual-lintel-column joints and three single-lintel-column joints, and their mechanical properties were studied by applying reciprocating sinusoidal wave loads, such as the load-angle hysteresis curve, skeleton curve, load carrying capacity, deformation capacity, and energy dissipation capacity. [Findings] Overall, the improvement degree of viscous dampers on the mechanical properties of dual-lintel-column joints is more significant than that of single-lintel-column joints, and the improvement degree varies with the type of viscous dampers. After the viscous damper is installed, the hysteresis curve of the lintel-column joint specimens is fuller; the load bearing capacity is increased by 16.4%-32.9%; the ductility coefficient is increased by 1.5%-12.6%, and the energy dissipation capacity is increased by 49.2%-112.3%. [Conclusions] The mechanical properties of lintel-column joints of pseudo-classic architecture can be markedly improved by the viscous damper.