Rinse the pearl barley, pour cold water, bring to a boil, remove the foam, cook over medium heat for 40 minutes.
Add the peas to the pearl barley, cook for another 30 minutes.
Grate the carrots on a coarse grater, cut the onion into rings, celery into small pieces. Fry the prepared vegetables in vegetable oil, stirring, for 6-7 minutes.
Cut the ribs into one bone, add to the vegetables and fry for 7-8 minutes.
Add the fried vegetables together with the ribs to the soup, season with salt and pepper, cook for another 10 minutes.
Add chopped Peking cabbage, cook for another 5 minutes.
Let stand under the lid for 20-25 minutes.