Different scales of the inverted pyramid structure are obtained by the acidic nano structure rebuilding (NSR) process, which realizes the mass prodution of high efficiency nanostructured multicrystallineblack silicon (mcbSi) solar cells with low cost. Firstly, the multi wire slurry sawn (MWSS) of multi crystalline silicon(mcSi) is investigated through silver metal assisted chemical etching(MACE). Results show that the dihedral angels of inverted pyramid maintain at 54.7°. The inverted pyramid structured mcbSi solar cell shows the best efficiency of 18.62% , with 500 nm inverted pyramid structure by 400 s NSR treatment at 50 °C, and the surface reflectance is 3.29%. Furthermore,the paper studies the texture property obtained by Ag/Cu MACE method and NSR treatment on diamond wire sawn (DWS) mcSi. The research results show that the saw marks on DWS mcSi surface are nearly disappeared. We obtain the optimal DWS mcSi solar cell with the same size of 600 nm invert pyramid sample, with Voc, Jsc and FF at 640 mV, 37.35 A/cm2 and 79.91%, respectively, and the maximum conversion efficiency is 19.10% which is higher than that of MWSS mcbSi solar cell.