In North Korea, in conformity with the still prevailing Juche ideology, food self-reliance seems to be the main objective in order to increase food security. The only option for boosting domestic food supply is to intensify agricultural and food production, as the possibilities for an extensive production increase are rather limited, due to natural, climatic and ecological conditions. The article analyses those less energy-intensive, less costly, but more cost efficient and environmentally friendly farming methods and practices, which might lead to sustainable self-sufficiency via sustainable productivity. Though technical developments have a vital role in increasing labour productivity and yields, a conducive economic environment is also essential for increasing domestic food supply.