The present invention relates to a manufacturing method of spicy beef and seafood soup and to spicy beef and seafood soup manufactured thereby. The manufacturing method of spicy beef and seafood soup comprises the following steps: (S1) adding 5-10 parts by weight of radish, 2-4 parts by weight of kelp, and 2-8 parts by weight of Hovenia dulcis with respect to 100 parts by weight of rice water left after a rice washing process, and performing a boiling process to prepare broth (S2) preparing mung bean sprouts, bracken, taro stems, and beef via a boiling process (S3) preparing a squid, mussels, and small shrimps via a cleaning process (S4) putting the mung bean sprouts, bracken, taro stems, and beef prepared in the step (S2) and the squid, mussels, and small shrimps prepared in the step (S3) into a frying pan coated with pepper oil, and performing a stir-frying process using red pepper powder (S5) preparing seasoning using soy sauce, salt, black pepper powder, and red pepper powder and (S6) adding the broth to the ingredients stir-fried in the step (S4), boiling the broth and the ingredients, adding the seasoning prepared in the step (S5) to the broth and the ingredients, and performing a reboiling process. According to the present invention, the manufactured spicy beef and seafood soup can alleviate the unpleasant taste of spicy beef soup and the oily taste of spicy seafood soup, consistently maintains spicy tastes of spicy beef soup and spicy seafood soup, and has a simple, plain, and refreshing taste. Furthermore, broth is manufactured using rice water, radish, kelp, and Hovenia dulcis during a broth preparation process so the spicy beef and seafood soup can secure a refreshing and simple taste and hangover relieving functionality induced by Hovenia dulcis. According to the present invention, noodles are added to the spicy beef and seafood soup so that consumers can eat spicy beef and seafood soup with noodles, or rice is added to the spicy beef and seafood soup so