【Objective】 In order to explore the effects of mixed sowing of Dolichos lablab and silage corn (Zeamays) on the quality and aerobic stability of mixed forage silage.【Method】 The silage of silage corn after single sow-ing was used as the control (CK). Four mixed sowing ratios of silage corn and Zea mays were set as 1∶1 (D1),1∶2(D2),1∶3( D3) and 1∶4( D4). After 60 days of fermentation at room temperature, the nutrients, fermentation qualityand aerobic stability of each treatment were determined.【Result】 The results showed that the dry matter loss rateand crude protein content of silage corn mixed with Laba bean increased significantly (P<0. 05). This study demon-strated that silage corn/Laba bean mixed silage could effectively improve the aerobic stability time, and secondary fer-mentation was less likely to occur in the exposed environment.【Conclusion】 Based on aerobic stability time and fer-mentation quality,we suggest that the mixed silage of corn and soybean is more suitable when the mixed ratio is 1∶1.