Abstarct: Studying the performance of micropile system as an effective and affordable method and with high executive capability for seismic retrofitting of the site and foundation and considering the different characteristics and effects of nearfield and farfield earthquakes on structures, justifies the need to study the performance of micropile group under nearfield and farfield earthquakes. In this research, by using Opensees software, a standard model of soil-micropile-cap consists of two types of granular and cohesive soil with elastoplastic behavior and different mechanical characteristics including loose granular soil (Dr = 40%), dense granular soil (Dr = 80%), soft clay and medium clay which were reinforced with two groups of vertical and inclined concrete piles with linear elastic behavior. The system was affected by three sets of farfield and nearfield earthquakes due to the site shear wave velocity (Vs30). The results of time history analysis including the responses of the micropile group (acceleration, horizontal displacement and internal forces) and soil (surface stress and strain) were compared and evaluated and important points for using the micropile group in order to seismic retrofitting in areas close to epicenter and far from it were presented. The results showed that the effect of near-fault records significantly increases the horizontal displacement in weaker sites such as loose sandy soil and soft clay. The increase in lateral displacement due to near earthquakes compared to far earthquakes is 125% and 124% for the vertical and inclined micropile group in the loose granular site and 15% and 13% for the vertical and inclined micropile group in the dense granular site, respectively. Also, the increase in lateral displacement due to near earthquakes compared to far earthquakes is 119% and 125% for the vertical and inclined micropile group in the soft clay site and 15% and 12% for the vertical and inclined micropile group in the medium clay site, respectively. The results in both granular and cohesive sites showed that the inclined micropile group showed almost the same performance in controlling horizontal displacement and system acceleration and performed better in controlling internal forces than the vertical micropile group. Also, the inclined micropile group has a better effect in controlling the soil surface shear stress and shear strain, while the performance of the vertical micropile group is better in controlling normal stress and normal strain