This study aim, was conducted to examine the effect of jerusalem thorn (Paliurus spina-christi Mill./PSC) and oriental hackberry (Celtis tournefortii L./CT) fruits and black cumin (Nigella sativa L./NS) seed on the microbial quality and physicochemical properties during the storage of meatballs +4oC. For this purpose, groups were formed by adding 2% PSC and CT fruits and NS seed to the meatballs. Prepared meatball samples were covered with stretch film in polyethylene plates and stored at 4±1 °C for 16 days. Analyzes were made on the 0, 4, 8, 12 and 16th days of storage in the meatball samples. The pH values of the meatball samples were determined between 5.89-6.02 on day 0, and between 6.10-6.49 on the on day 16, aw values between 0.956-0.964 on day 0 and 0.971-0.980 on day 16. TMAB, psychrotrophic, LAB and yeast-mold counts of meatball samples were 5.14-5.53, 4.62-4.83, 5.04-5.32 and 3.40-3.87 log10 cfu/g, respectively on day 0, and 7.01-7.9, 7.64-8.24, 7.59-8.05 and 5.69-6.27 log10 cfu/g, respectively on day 16. PSC and CT fruits and NS seed slowed down the microbial growth rate in meatballs. The best antimicrobial effect was found in psychrotrophic bacteria for CT fruit and in LAB and yeast-mold for NS seed. As a result, it can be recommended to use PSC, CT fruits and NS seeds in compositions to extend the shelf life of meatballs. The results of this study can provide useful information for anyone dealing with food and further studies investigating the shelf life of meat and meat products.