The passive control method, which is one of the strategies for retrofitting and designing structures against earthquakes, has several sub-branches that use Tld dampers is one of these methods. Generally, the TLD dampers are deprecated using the motion of the fluid in the energy cylinder. Viscose dampers have been widely used in design and refinement because of their ease of installation, compatibility and coordination with other members, as well as a variety of dimensions and sizes. Silicon is used as viscose fluid in this silencer. The passage of the flowing fluid from the pores formed inside the damper cylinder causes the vibration to heat to change. Due to the energy absorption capacity, Tld dampers have many applications in both areas of construction and retrofit. During the earthquake, this device is activated and converts the input energy of the earthquake into thermal energy, in other words, it absorbs the energy absorbed. In previous studies, the use of this damper has been addressed in different structures, but a specific category for The evaluation of its impact on various types of concrete structures is not optimal in terms of location of the TLD damper location. In this research, the aim of the study is to investigate the optimization of the TLD damper in reducing the seismic response of concrete structures and to find the optimal location of application of liquid TLD damper in concrete structures. The effect of using these type of dampers on the structure response, such as parameters such as structural displacement , The relative deformation of the floor, the cutting of floors and structural acceleration will be investigated and the optimum location of the damper in terms of achieving the best performance of the dampers in order to achieve the best behavioral structure of the structure and achieve the highest reduction of seismic response of the building, by placing the dampers in The floors of 5,10,15,25 floors will be studied in a 25-story building D. Finally, we will find the optimal location of the TLD in a 25-story building.