Single crystals of CuSi2P3 as long as 1cm has been grown by using tin solution growth. X-ray powder photography technique showed that only CuSi2P3 can grow as a pure material without any exchanges of Si with Sn. The structure is in the form of Fcc with a lattice parameters of a=0.5248nm. Electron probemicro anaiysis (EPMA) has supported the X-ray data in regarding the single phase of this compound grown by solution growth.