Abstract: The nano ZnO/polysiloxane combined coating material was prepared by referring previous research works and applied onto textiles by coating to get functional fabrics. TEM and laser grain size analyzer was used to examined the particle size and distribution of the coating material on the fabric. Atomic absorption spectrophotometer was used to examine the migration of Zn2+ in alkaline synthetic perspiration washing of the functional fabric. The results showed that the average particle size of the material was 103nm, with 70% less than 100nm. The particles exhibited a bursiform structure. The Zn2+of the coating material showed a powerful washability in alkaline synthetic perspiration, which proved that the prepared coating material was stable in alkaline synthetic perspiration.