This study aimed to analyze the economic role of cassava in farm households in Central Lampung Regency in the span of 1998 to 2018. Data collection were using surveys and in-depth interviews and analyzed using tabulation method. The results showed that there had been a decline in the economic role of cassava in farm households from 86% to 43.39%. There had been an increase in the share of on-farm income outside cassava (sugar cane, poultry farming, and cattle, etc) and the share of off-farm income (farm laborers) and non-farm income (employees, drivers, and traders) in line with the growth of the sugar processing industry since the past 10 years. In 1998, the economic role of cassava on household income was 86% while it was 43.39% in 2018. Non-cassava income was 39.13%, off-farm income as farmer income was 8.52%, and non-farm income was 8.96%. The shift of the primary sector to the secondary and tertiary sectors occurred because in Terusan Nunyai Sub-district, sugar cane factories and pineapple factories had been established, so farmers preferred to become farm laborers, employees, drivers, and traders to increase their incomes.