This study investigated the influence of suspended ceiling type of residential building on heavyweight floor impact sound through floor impact sound measurements in test building using rubber ball. In general, gypsum board is suspended using hangers for the ceiling finishing in the Korean residential building, and air space between slab and the suspended ceiling thus occurs. Three types of the suspended ceiling (perforated, sound absorbent, and resonator ceiling) were tested to explore reduction of floor impact sound level in comparison with general gypsum board. Results showed that three suspended ceilings significantly reduced by 1~4 dB in single number quantity for rating heavyweight floor impact sound insulation. It was also found that dominant frequency band of the reduction depended on the suspended ceiling types.