Pb(NO3)2 and Na2S were respectively dissolved in solvation layer of Triton X-100/C10H21OH/H2O lamellar liquid crystal. Mixing up the two liquid crystal systems could synthesize fine particles PbS in the solvation layer. The synthesis was based on the limitation of the change of thickness of solvation layer in the lamellar liquid crystal. The size of fine particle PbS thus synthesized was less than 10nm, and changing the related composition concentration didn't much affect the size of fine particles PbS.

Key words: SURFACTANTS, WATER, LIQUID CRYSTAL, SODIUM SULFIDE, LEAD SULFIDE, ULTRAMICRON, LEAD NITRATE