In order to study the effect of sowing date and seeding levels on quantitative and qualitative yield of chamomile (Matricaria recutita) L., an experiment was conducted. The experimental design was split-plot in the basic of randomized complete blocked design with three replications. Main plots consisted of three sowing dates (6 Nov, 5 Mar, and 4 Apr) and sub-plots included three seeding levels (0.2, 0.4 and 0.8g/m2). On the basis of the results, highest plant (47.4cm), the most number of plants in plot (135.4 plants), the most yield of fresh and dry flower yield (749.1 and 175.1g/m2) was obtained from the plants were sown on 6 of Nov but the most percentage of essential oil and chamazulene (0.59 and 5.62 percent respectively) and essential oil yield (0.79g/m2) was obtained from the plants were sown on 5 of Mar. On the basis of the results of their interaction, highest plant (49.7cm), the most yield of fresh and dry flower yield (810 and 198.2g/m2) was obtained from the plots were sown on 6 of Nov with 0.8g/m2 but the most essential oil and chamazulene content (0.63 and 5,9 w/w percent respectively) and essential oil yield (0.97g/m2) was obtained from the plots were sown on 5 of Mar with 0.4g/m2. According to the results, the most suitable sowing date and seeding level in Mashhad condition is 5 of Mar with 0.4g/m2 seeds.