Shown is a method for manufacturing an instant-type soybean paste blend made with sea urchin eggs, having grinding lyophilized sea urchin eggs; blending 100 parts by weight of an aged soybean paste, with 16 to 30 parts by weight of the ground sea urchin eggs; lyophilizing the soybean paste blend with sea urchin eggs for 15 to 20 hours to a water content of 5 to 10%; and packing the lyophilized soybean paste blend made with sea urchin eggs. Packed in a unit dose suitable for one meal, the soybean paste blend can be readily used in the precise amount necessary for cooking. Blended with sea urchin eggs, the soybean paste is rich in various nutrients. Foods cooked with the soybean paste blend are imparted with the flavor of sea urchin eggs and the nutrients of the soybean paste as well as those of the sea urchin eggs.