During the magnificent economic development in Thailand for last three decades, so-called agri-business were promoted in Thai rural area. The promotion of agri-business encouraged Thai farmers to adopt the monocropping system. However, it is doubtful whether or not this penetration of agri-business has contributed to the improvement of Thai rural life, especially for the so-called hard core poverty group. Actually, the income equality deteriorated and debt problem became serious among Thai farmers. While monocropping penetrates in the Thai the integrated farming system came to attract peoples attention, especially among villagers and non-governmental organizations. This farming based on the concept of self-reliant. And primary objective of the production is home consumption rather than selling to the market. Only a surplus will be sold to others. However, only a few academic study on this farming system has been done. In order to find an appropriate farming for Thai village, the study on this farming technique is strongly needed. In the study, two questions are mainly examined. The questions are : whether integrated farming is actually viable. And which system, integrated farming or monocropping, is more appropriate for villagers. In this paper, cost-benefit analysis is applied to test the viability and to compare two farming systems. Several findings are summarized as follows : 1. Integrated farming is both economically and financially viable except for the case with high discount rate. 2. Integrated farming is more profitable than monocropping system when the discount rate is low. 3. Integrated farming is less sensitive to price changes of main crop. 4. Integrated farming requires a relatively high investment in the early years. 5. Integrated farming requires more labor input than monocropping. Based on these results, it can be said that integrated farming is more suitable for villagers, if the discount rate is low, especially for the small farmers whose family labor is in surplus. It is also found that disseminating this farming system as just another farming techniques is not enough. Some other factors such as funds availability, information accessibility etc. should be improved at the same time so that this farming system can be successful. And the learning process of the integrated farming system should also be focused on. Otherwise integrated farming cannot be a solution for the sustainable development of villages.