This study is aimed to analyze economic effectiveness of the sea cucumber seed releasing program in Gyeongsangbuk-do region. Based on the surveyed data, the production value of released sea cucumber and the seed releasing program cost are estimated and compared to determine the economic validity of the sea cucumber seed releasing program. Results show that the B/C ratio, as an indicator of economic evaluation, is 2.0, indicating that the sea cucumber seed releasing program in Gyeongsangbuk-do region would be economically feasible under the current production and market conditions. Sensitivity analyses of main variables indicate that the economic effectiveness can be increased when the recapture rate would be increased and the seed price of sea cucumber would be decreased.