Provided are a novel protein condensate formed by assembling complexes comprising protein and other materials, and a method for the production thereof. The protein condensate (2) according to the present invention comprises an assemblage of complexes (1) including a protein (10), a surfactant (12), and water (11). The surfaces of said complexes (1) exhibit hydrophobic properties due to the surfactant (12) and encapsulate the protein (10) and water (11). The protein (10) is a water-soluble protein that can dissolve in the water (11); the water (11) included in the complexes (1) surrounds the protein (10); and the surfactant (12) includes a hydrophobic portion (21), a proteinphilic portion (23) that interacts with the protein (10), and hydrophilic portion (22) that interacts with the water (11).
