The use of the creditworthiness models is one of the used methods in the evaluation of bank loans and facilities clients in commercial banks,The main objective of creditworthiness study is to identify the future potential of the customer to repay the Granted credit and interest, many creditworthiness models had been provided, These models have been in a constant development of the variables included, And it has sought a researcher to study the most important of these models and compare them to gain access to the most comprehensive model, which can be used in the study of the customer's creditworthiness as a tool to avoid future risks at public and private banks in syria. Research problem stems from the fact that the granting of credit without study the creditworthiness of clients leads to face risks of future defaults in credit repayment, This requires knowledge of all factors of the creditworthiness to reduce the risks resulting from the granting of credit, both of which related to the bank or the client or other variables beyond the control of the parties. The research aims to identify the concept of creditworthiness and its Justification, and display the most important models, and a comparison between models and identify similarities and differences among them, it has been relying on the historical and descriptive and analytical approaches in the presentation of the creditworthiness of models, in addition to the inductive approach in order to access to the most comprehensive variables creditworthiness to be recommended to follow it during the credit decision making model. The researcher reached a set of results most important is the need to provide a model creditworthiness fits with the application environment, and that the form is familiar with financial and personal factors for the client borrower, and the more creditworthy models briefing these factors is the 18C's model, Accordingly, the researcher recommended the adoption of this model to study the creditworthiness of loan clients in the public and private banks operating in Syria.