The main focus of the study is mechanical properties of cotton woven fabrics different fabric structures for similar raw materials and machines the researchers to produced four sample fabrics in KTSC with plain, 2/2 twill, 3/1 twill and 3-end satin weave structure using for similar 27 Ne warp and 20 Ne weft counts. Due to this research work effect of weave structures on various mechanical properties of cotton woven fabrics was studied. One of the most important characteristics of woven fabric is strength. Strength is also measured in tensile, tearing or elongation. The findings of this study 3/1 twill, 2/2 twill and plain weave have high breaking strength than satin weave. Because the three and two warp yarns share all the force applied during this time the maximum force required to break the three and two yarns at the same time need maximum force. In the case of plan weave higher interlacement causes higher crimp and elongation due to this reason plain weave high breaking strength than satin weaves. And too much larger floats also cause lower breaking strength due to looser structure. Long yarn floats and a low number of interlacing cause the continuous contact area of one yarn strand to expand and this facilitates the yarn to lose its form more easily by providing easier movement as a result of the rubbing motion. So long floats in a weave such as satin structures are more exposed abrade and pilling faster. But the fabrics that have lower floats such as flat plain and 2/2 twill weave fabrics have better abrasion and pilling resistance than satin and 3/1 twill weaves. a group of yarn float on the fabric would share the applied force in the satin weave increase the tear resistance where as in the plain fabric a single yarn would load 64N force due to this reason it was easily tear than the other woven fabric based on this experiment the result shows twill weaves are the better strength, moderate pilling and plain weave better abrasion resistance