The field work was conducted at the Experimental Farm of Desert Research Center at Mariout during two winter successive seasons, 2017/2018 and 2018/2019, to study assess response to seed soaking with ascorbic acid (AS), (0, 25, 50 and 75 ppm) and foliar spraying with salicylic acid (SA) at (0, 50, 100 and 150 ppm) on yield and yield components and seed chemical composition on faba bean cv. (Mariout-2). Obtained results in this study clearly proved the role of AS and SA in increasing calcareous of faba bean plants. The highest rates from (AS) was increased significantly yield, yield components and nitrogen content in both growing seasons. Either seed soaking in AS, (25 ppm) or foliar application of SA (50 ppm) exhibited significant increments in all yield parameters compared with untreated control. Moreover, rate of AS treatment in seed soaking at (50 ppm) and foliar spray with SA at 100 ppm induced significant increases in the protein and N content of faba bean seed compared with the control groups. The magnitude of increments was pronounced in response to 75 ppm seed soaking of ascorbic acid and 150 ppm of SA as a foliar spray on faba bean cv. (Mariout- 2), which led to positive changes in all studied parameters