The study on feasibility in opening indoor artificial grass football field business, case study: Khaoroupchang subdistrict, Maung district, Songkhla province aims to analyze feasibility in opening indoor artificial grass football field business whether it is worthwhile for investment. We will consider on NPV, IRR, DPB, and BCR as indicators of project investment worthiness. In the study, income or expenditure factor is assigned to vary in 3 cases as follows. Case 1: cash flow budget, case 2: cash flow budget with 10% additional cost, case 3: cash flow budget with 10% decreased return, case 4: cash flow budget with 10% additional cost and 10% decreased return.Will the investment worthwhile when the factors have changed? This is considered by analyzing sensitivity of the project. It is an analysis to consider the impact of project sensitivity whether it is worthwhile for investment.Study objectives:1) Examine feasibility in opening indoor artificial grass football field business in Khaoroupchang subdistrict, Maung district, Songkhla province2) Examine consumer need in indoor artificial grass football field in Khaoroupchang subdistrict, Maung district, Songkhla province