The research aimed to investigate the effects of Bacillus amyloliquefaciens and different mineral additions on lignocellulose degradation，humus formation and microbial diversity during composting. In this study，chicken manure and wood chips were used as raw materials，and five treatments were set up，including the control group (CK)，with the addition of 2% Bacillus amyloliquefaciens based on the dry weight of the material (T1)，2% Bacillus amyloliquefaciens+10% bentonite clay (T2)，2% Bacillus amyloliquefaciens+10% mackerel (T3)，and 2% Bacillus amyloliquefaciens+10% sea foam (T4). The effect of the different minerals added on the degradation of lignocellulose and the formation of humus and microbial diversity during the composting process were analyzed through the monitoring of temperature，lignocellulose，humic acid，and bacterial diversity and other indicators to analyze the effects of Bacillus amyloliquefaciens and minerals on the composting process. The results showed that the hemicellulose of T2，T3 and T4 treatments was significantly reduced by 12.63%-18.44% (P<0.05) and thecellulose content was significantly reduced by 10.48%-12.59% (P<0.05)，among which the best effect was achieved by the T3 treatment (hemicellulose content was reduced by 18.44% and cellulose content was reduced by 12.59%). The humic acid content of T2，T3 and T4 treatments was significantly increased (4.94%-6.17%，P < 0.05) and humic acid content was increased significantly (11.54%-15.38%，P < 0.05)，among which the T3 treatment was more effective (humic acid increased by 6.17% and humic acid increased by 15.38%). Compared with CK，the humic acid to fulvic acid ratio of T2，T3 and T4 treatments was significantly increased by 16.91%，23.54% and 12.77% (P < 0.05)，respectively. In addition，the humic acid to fulvic acid ratio of all treatments was higher than 1.6 after the 14th d，indicating that the humification process had been effectively promoted，and the seed germination indices were greater than 80% after 14 d，which reached the standard of decomposition. The bacterial community structure changed greatly during the composting process，and the bacterial diversity of all treatments was increased significantly，with Firmicutes，Proteobacteria，Actinobacteriota and Bacteroidota becoming the dominant bacterial groups in composting，and Bacteroidota showing an increasing trend in the composting process，with the Bacteroidota showing an increasing trend in the composting process，with higher relative abundance(13.01%)in T3 treatment. In this study，it was found that the synergistic effect of Bacillus amyloliquefaciens and Bacillus cereus could promote cellulose and hemicellulose degradation，accelerate humus formation，and shorten the decomposition time to less than 14 d. The synergistic effect of Bacillus amyloliquefaciens and Bacillus cereus had a greater potential for practical composting applications.