This study is an analysis of the growing trend from 1971 to 1980 on the four major fisheries in Korea; large powered purse seine, anchovy drag net, two boats large trawl and one boat large trawl. The main purpose of this study is to find some solutions against the problems which these fisheries are faced with, through the analysis of the growing trend of income, capital structure and main ratios of finance. According to the result of the analysis, the problems are as following: circled1 Revenues per vessel was decreased when catches per vessel was decreased in 1979, 1980. therefore the increase ratio of the revenues per vessel was weakened from 1979. circled2 Catches per vessel was decreased from 1979 in spite of the increase of gross cathes in its field. circled3 Production costs in fishing, such as the cost of wages, fuels and repairs, was steadily up year by year. circled4 Profitability was deteriorated from 1978. circled5 productivity was lower from 1978. circled6 Stability was lower from 1978. The solutions out of the above problems are as follows; circled1 Fisheries resources must be fostered. circled2 The numbers of vessels should be reduced according to the fisheries resources. circled3 The precise amount of resources should be dynamically estimated. circled4 The fishermen must be educated to reduce fishing cost such as the cost of fuels and repairs, etc. circled5 The old vessels should be replaced. circled6 The production efficiency should be promoted. circled7 The rate of interest should be cut down to reduce financial cost.