The invention provides recombinant fish roes and a preparation method thereof. The recombinant fish roes are prepared by the following steps: (1), preparing a reaction product stock solution; (2), preparing mixed paste of fresh fish roes and egg liquid; (3), carrying out deodorization by using ozone of which the concentration is 1.8mg/L; (4), preparing a starch solution; (5), preparing an edible gum solution; (6), adding water, and carrying out uniform mixing; (7), carrying out soaking in a calcium chloride solution for 10 minutes; and (8), carrying out soaking in gallotannic acid for 20 minutes, fishing the soaked fish roes out, and carrying out thorough draining so as to obtain the recombinant fish roes. The recombinant fish roes provided by the invention have the following advantages: (1), the recombinant fish roes are low in allergen IgE binding activity; (2), the recombinant fish roes are uniform in granules, small in fishy smell, rich in nutrition, and unique in flavor; and (3), the preparation method of the recombinant fish roes is simple in processes, and relatively low in cost.