Textile processing offers a method by which defects in textiles can be introduce certain properties. Antimicrobial treatments have gained in an importance for the textile material. Woolen fabrics have been dyed with natural dye obtained from turmeric using a traditional process. The fastness properties including light and washing of colored fabrics were evaluated. The color strength (K / S) of woolen fabrics show that pretreatment with nanochitosan is more effective than untreated. The pH values, temperature and duration of the dye bath for woolen fabrics were investigated. The antimicrobial activity of curcumin obtained from Curcuma long a can serve as a suitable alternative natural product as an environmentally friendly antimicrobial finishing agent and used as medical herb with different pharmacological applications. It is used in woolen fabrics in lieu of harmful chemicals. The investigation of the antimicrobial activity of curcum in showed the ability to inhibit gram-positive and gram-negative and exhibited a remarkable effectiveness against Staphylococcus aure us and Escherichia coli as well as an isolate of the pathogenic fungus As pergillus niger. Therefore, the present study was carried out with the aim of extracting and applying environmentally and eco-friendly natural dyes from fresh and dry curcumin to woolen fabrics. In addition, the study deals with the effect of the staining and coloring properties of curcumin on woolen fabrics.