This study aims to identify the meaning of Banking confidentiality the researcher tackles the definitions & expressions that explain the banking confidentiality bases, and its resources as banking confidentiality principals, in addition the research also tackles the exceptional case in case of committing Money laundry violation/ offence. In such cases all the working banks should abide to inform the concern surveillance authority in case they notice any doubtful financial violation as comply with law. The researcher tackles this aspect by using the (Analysis Research). The researcher divided the study into three chapters, in chapter(1) he discussed the meaning of Banking Confidentiality, whereas in chapter(2) he tackles the legal rules for abiding to the banking confidentiality and in the third chapter he the legal impacts resulting from disclosure the banking confidentiality. At the end of the study the researcher puts his recommendations and the most important results he found from this study.