This investigation was carried out under glasshouse conditions (25 * 3°C, 65 * 5% R.H.) at Plant Protection Research Institute, Dokki, Giza. This method aims to produce a large numbers of leafminer adults, Liriomyza trifola(Burgess) (Diptera: Agromyzidae) with lithe costs of materials used and less labors. Common bean plants (Phaseolus vv/gads L.) were used for rearing L teal held in rearing cages. Artificial infestation with Urionlyza adults was done for ten hours then plants were transferred to other ages. After seven days from hatching plant leaves were picked up and put on cartoon trays for pupation, pupae were collected by brushes and put in big glass jars for 9-11 days for adult emergence. Emerged adults used for recyding the rearing method of Uriomyza and/or for rearing the parasitoid, Diglyphus isaea (Walker) (Hymenoptera: Eulophklae) and/or Uriomyza biological studies.