Cold pressed oils produced from different plant seeds and fruits and their stability could be affected by light, air, and temperature during storage. Therefore, we aimed to determine the stability of some plant seed oils of commercial value during storage. In the present study was aimed to determine the stability of seed oils of some plants, which have commercial value, during the storage. In this context, the black cumin, flaxseed, nettle, coriander, grape, and sesame seed oils produced by using the cold-pressing method by commercial companies were stored at temperatures of 4, 20, and 37 ºC for 12 months. The peroxide, specific absorption, p-anisidine values, total phenolic content, antioxidant capacity, antiradical activities, color parameters, aroma components, and fatty acid content of seed oils were investigated on 0th, 1st, 3rd, 6th, 9th, and 12th months of storage. The highest initial peroxide value of seed oils was found in black cumin seed oil with 26.05 meq O2/kg and the minimum in flaxseed with 0.25 meq O2/kg. The highest total phenolic content was found in coriander seed oil (157.26 mg GAE / 100 g) samples, whereas the lowest total phenolic content was found to be 13.80 mg GAE / 100 g in nettle seed oil. In conclusion, the bioactive properties of seeds reduced during the storage and due to the effect of temperature. It was determined that the storage time and temperature affected the shelf life and the oxidative stability of the oils decreased in the samples stored at 37°C temperature.