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PT Multi Nitrotama Kimia is one of the largest mining service companies that provide blasting services and sales of explosives in Indonesia. PT Putra Perkasa Abadi Jobsite Borneo Indobara is one of PT Multi Nitrotama Kimia’s customers who is facing challenges in optimizing blasting activities. Currently, blasting activities at PT Putra Perkasa Abadi Jobsite Borneo Indobara are carried out within 500 m of the active slope, so that the blasting distance is optimized. In optimizing the blasting distance, it is necessary to maintain slope conditions (no underbreak / no overbreak) and to consider the vibration of blasting results on the slopes. The line drilling method was chosen for the blasting trial stage. In the observation activity, an analysis of the resulting blasting and fragmentation vibrations was carried out. Precise planning and good control in field operations play an important role in this experimental process. Based on the results of the blasting trial, no damage was found in the area 25 m – 100 m from the blasting location and a 10% - 20% reduction in blasting vibration results (Peak Vector Sum) was obtained when compared between normal blasting designs with controlled blasting designs.