Usage of improved fish processing methods appears to be relatively low compared to traditional methods. Hence, this research aimed to investigate the effect of the utilisation of Standard Fish Processing Practices (SFPP) on the livelihood status of fish processors in Delta and Edo States. Users and non-users of SFPP were sampled. Sampling of users involved a random selection of 70% from the trained 90 fish processors per state to give a sample size of 63 respondents per state and 126 users for the two states, while the snowballing technique was employed to select 63 non-users per state and 126 non-users for the two states to give a total sample size of 252 respondents for the research. Data used for this research were sourced using an interview schedule and analysed using descriptive statistics and a t-test. The results revealed that the majority (77.8%) of SFPP users had a high livelihood status, whereas a high percentage (63.5%) of non-users had a low livelihood status. Additionally, users of SFPP reported a better health status (19.95±3.29) compared to non-users, who had a poorer health status (52.50±8.15). Additionally, the majority (96.8%) of SFPP users were food secure, while 86.5% of non-users were food insecure. Vulnerability to poverty was low for 90.5% of SFPP users, whereas 80.0% of non-users showed high vulnerability to poverty. The study concluded that the usage of SFPP has significantly improved the livelihood status of fish processors in the study area. The study therefore recommends that agricultural extension agencies strengthen their efforts to disseminate SFPP to non-users.