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In order to promote the improvement of the new mode of contactless delivery，improve the quality of cold chain food，and develop new quality productive forces，it is necessary to study the internal influence mechanism of risk factors of contactless delivery of food cold chain. Firstly，the characteristics of the contactless delivery mode were systematically analyzed based on the national standard documents and related literature，and the risk index system of the contactless delivery of food cold chain was constructed，including six first-level indicators and 17 second-level indicators. Then，the FDANP was used to evaluate the risks at all levels，determine the causal relationship between the factors，and quantify the weight of the risk factors. The results show that information risk，personnel risk，cold chain technology，and equipment risk can affect other risk factors in the first-level indicators. Among the second-level indicators，factors such as natural disasters，delivery timeliness，and optimal transportation planning are the key risk factors. In the future，the new mode of contactless delivery of food cold chain can be improved from three aspects: improving the level of informatization，attaching importance to emergency response capabilities，and enhancing supervision.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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