The minimum tillage is a method of reducing energy consumption and greenhouse gas emissions by only tilling the part of areas where crops are planted. Until now, most studies have estimated greenhouse gas emissions only from the gases emitted during crop cultivation in rice paddy. However, greenhouse gases are also emitted from agricultural material (energy, fertilizers, pesticide, and other materials) inputs. Therefore, this study aims to comprehensively estimate greenhouse gas emissions from agricultural material inputs and minimum tillage conducted paddy during rice cultivation. The experiment was conducted in rice paddy from Gimje, South Korea, where conventional tillage and minimum tillage were implemented. Greenhouse gas emissions were obtained by direct measurement of methane (CH₄) and nitrous oxide (N₂O) emissions from rice paddy and calculation using life cycle assessment (LCA) for emissions from agricultural material input. The results showed that direct GWP during crop growth were 1.42 Mg CO₂-eq. ha-1 in conventional tillage, and 1.02 Mg CO₂-eq. ha-1 in minimum tillage. Greenhouse gas emissions from the input of agricultural materials were 0.84 Mg CO₂-eq. ha-1 in conventional tillage and 0.63 Mg CO₂-eq. ha-1 in minimum tillage. Minimum tillage (1.65 Mg CO₂-eq. ha-1) was lower in the total greenhouse gas emissions (direct emissions + emissions from agricultural material inputs) than conventional tillage (2.26 Mg CO₂-eq. ha-1). This is a result indicating that greenhouse gas emissions are greatly affected by direct emission in paddy and energy input, which could reduce greenhouse gas emissions when the minimum tillage was applied than the conventional tillage. It is expected that greenhouse gas emission reduction strategies in the agricultural sector could be reduced by applying minimum tillage to cropland and reducing the use of agricultural material.