The Chunma requires a simple pre-treatment, due to the inconveniences of preservation, toxicities, and pungencies in intact state. Various steaming conditions were examined to establish the anti-oxidative characteristics of Chunma using the Response Surface Methodology (RSM). Total phenolics and electron-donating ability were optimal at 94.43 and $101.67^{circ}C$ for 42.38 and 41.09 min, respectively. Anti-oxidative (Al) and nitrite-scavenging ability were optimal at $100^{circ}C$ for 40 min. Optimal steaming conditions were determined as 96{sim}107{circ}C$ for $28{sim}46min$ min, almost identical to the predicted conditions of $100^{circ}C$, 40 min determined using the superimposed contour map. Anti-oxidative activities (AI) under the optimal conditions were $95.9%{sim}115.6%$ of those determined under predicted conditions, an indication of the high reliability of the calculated values.