The study on technical intervention for increasing income during autumn-winter rice crop in Tan Hiep Kien Giang province was conducted with 03 treatments: (1) sowing rate, (2) nitrogen fertilizer formula, and (3) timing of fertilizer application. The experiment was arranged with 3 repetitions and the data of rice yield and production costs were collected for analysis to find out the differences between the treatments. The results show that: high profit could be achieved with the sowing rate of 80-120 kg/ha; the treatment of applying no fertilizer had the rice yield which was not different to the treatment of  nitrogen fertilizer formula of 80-35-45kg/ha and achieved equal profit with CON model; 1 time of fertilizer application (8 DAS or 40 DAS) could achieve high economic efficiency but was not significantly different to none fertilizer application and CON; applying appropriate technical interventions could earn high economic efficiency with the sowing rate of 120kg/ha and applying no fertilizer. The autumn-winter rice crop at Kenh 7B, Thanh Dong A, Tan Hiep, Kien Giang province with the application of none-fertilizer treatment could be a model for green rice production with high income. However, further study is required for the autumn-winter rice cop 2015 in order to confirm the result for recommendation into production.