This study investigates the effects of plasma-activated water (PAW) on the sprouting of pea seeds (Pisum sativum L.), comparing its physicochemical properties with those of potable water (PW). PW was treated with atmospheric cold plasma using two feed gases for different durations and volumes. Key physicochemical properties, including pH, electrical conductivity (EC), oxidation-reduction potential (ORP), and nitrate (NO₃⁻), were monitored over 30 days. Results showed that longer plasma treatment and smaller water volumes increased EC and NO₃⁻ levels while pH decreased and remained stable over 30 days. Germination rates significantly improved, with seeds treated for 4 min exhibiting a 75% increase (p<0.05). Although total phenolic and flavonoid content was unchanged, Gamma-aminobutyric acid (GABA) levels increased slightly (p>0.05). Scanning electron microscopy revealed that PAW treatment effectively removed the seed's waxy surface, enhancing sprouting. These findings suggest that PAW can improve sprouting with the optimization of treatment conditions for different seed types.