The lack of information about the cultivation of coriander plant in Syria prompted us to study the effect of four plant densities (33.33،10، 13.33 and 20 plant/m2)، and four levels of phosphate fertilization (0107.2،160.8، and 214.4 of Superphosphate 46%) on some productive and quality traits of the coriander plant. This study was carried out in Tartous province during the growing season 2014، using Randomized Complete Block design with a Split Plot arrangement of treatments. The Results revealed that there were significant differences between the treatments for the whole traits، in addition to a significant interaction between density and phosphate fertilization. Although the densities (10، 13.33 and 20 plant/m2) varied in their effect، they had superiority upon the control(33،33)plant/m2، and the density 10 plant/m2 had more important effect in terms of increasing each of: branches number/plant، seed weight/plant، seeds number/inflorescence، protein content in plants and seeds and beta carotene and chlorophyll. However، the level 160.8k.g/h of P2O5 increased the number of inflorescences/plant، number of fruits/plant and seed weight/ inflorescence.