Aiming to reduce waiting time and to get optimum investment for material and human resource .The queuing lines principle is introduced, the mathematical models required are given, and its applications are discussed. The queuing lines procedure is applied in the general establishment for manufacturing of ready made clothes in Mousl , the data collection and statistical tests are used to choose the mathematical model suitable for a certain workshop . The results for such a model showed that there are better operation results with less time and more organized processing.