Abstract Now a day information security is the biggest issue of social network. there are numerous technique are available for image and data security, watermarking is one of them. Digital watermarking is a way which is used to verify and authenticate the texts, image, video etc. Watermarking Technique is not only used for image, video, audio security, it's also used for authentication, image protection, rights of documents etc. In this perspective experiment we explain the impact of different noise on LSB Watermarking, Experimental Analysis of impact of noise and its effect on LSB watermarking. The results are simulated by MATLAB software. The results provided in various tables and graph and this experiment explains the effect of noise on LSB watermarked image with the help of PSNR, SNR and Correlation coefficient.