The research work was conducted to demonstrate the management strategies of the floodplain area and socio-economic improvement of people for floodplain aquaculture of Begumgonj upazilla situated in Noakhali District of Bangladesh. Data were collected through focus group discussion and interviewing with farmers and committee members of the floodplain (dogi) management. The studied floodplain (dogi) area (Sonali community based fish culture project) is 12 acre which was brought under floodplain aquaculture project by RFLDC-DANIDA. Almost 90000 fish fingerlings were stocked in floodplain during May-June. Average fish production in the Sonali community based fish culture project were 13% prawn, 50% carp, 4% SIS and 33% large fingerling. Average expenditure of fish culture was BDT 89025.00 and income from floodplain was BDT 141500.00. The results of the present study indicate that community-based fish culture in floodplain is technically feasible, economically profitable, environmentally non-destructive, and socially acceptable. In marketing systems, local agents, whole sellers, local fish traders and retailers may be present as a middleman.