A field experiment was carried out in loamy-clay silty in winter season of 2014 in Anbar Governorate-Hisaiba region/Al-Khalidiyah district that located on 43° longitude and 33° latitude, in order to know the effect of foliar application with four concentrations of copper 0, 10, 20, 30 mg Cu L-1 and four concentration with potassium 0, 50, 100 and 150 Kg ha-1 were added to the soil in growth, yield and its quality of broad bean- Spanish variety (cv. Luz De Otono). Split-plot arrangement. Was used in Randomized Complete Block Design (R.C.B.D.) with four replications. The experiment results were summarized as follows: Copper concentrations significantly affected in all studied traits. The concentration of 30 mg Cu L-1 gave highest average of plant height, potassium ratio in leaves, root length, pod number, 100 seeds weight (140.75g) grain yield of plaint (68.09g) percentage in seeds (28.97%), while 20 mg Cu L-1 gave highest average of cu percentage in leaves and 10 mg Cu L-1 gave highest average of leaf area.Potassium levels significantly affected in all studied traits. 100 kg K ha-1 gave the highest average of, leaf area for plant, root length 100-seed weight(138.59g), seed yield in plaint(71.76g), while 150 kg K.ha-1 was superior in plant height, concentration of Cu and K in leaves, number of pod in plant and protein percentage in seeds (29.69%). The interaction between K levels and Cu significantly affected significantly in all studied traits, except the, protein percentage in seeds. The combination of 150 Kg K ha-1 + 30 mg Cu L-1 gave highest average of number of pod in plant (19.09 pod), seed yield in plaint (83.41g).