Objective In order to extend the shelf-life of "Summer Black" grapes at room temperature. Methods The effects of shelf-life of two kinds of preservation packaging on the shelf-life of grapes were comparatively investigated: SO2 controlled release packaging and SO2 controlled release packaging with 1-MCP, using the naked grapes and grapes packaged with ordinary LDPE as the control groups. During the experiment, the headspace concentrations, appearance quality, water loss, stem browning, solidity, TSS, TA, and the VC content were tested and analyzed every two days. Results The experimental results showed that SO2 controlled release packaging could form a suitable modified atmosphere packaging (MAP) environment and prohibit the growth of pathogenic bacteria in grapes. After 8-day storage at room temperature, the naked grapes and grapes packaged with ordinary LDPE showed serious stem browning and high rot rate. The stem browning of the grapes packaged with SO2 controlled release packaging and SO2 controlled release packaging with 1-MCP were level 1 and level 0, and the rot rates were 3.13% and 1.1%, respectively. Conclusion The appearance and taste of the grapes had commercial values, and the preservation effects were obvious.