1. Storage at room temperature: Silkworm pupae can be stored at room temperature at low temperature. However, direct sunlight should be avoided to prevent deterioration.

2. Cold storage: put the silkworm chrysalis in the refrigerator, and the temperature should be kept within an appropriate range, not too low or too high. This can keep the freshness of silkworm chrysalis and prolong the preservation time.

3. Frozen storage: If you need to store the silkworm chrysalis for a long time, or pick it too much at one time, you can freeze it. Frozen silkworm chrysalis will not survive, but it can keep its freshness.

No matter which preservation method, we should pay attention to the control of temperature, humidity, light and other factors to ensure the freshness and survival time of silkworm chrysalis. At the same time, in order to ensure food safety and avoid pollution and cross-infection, it is necessary to keep silkworm chrysalis clean and hygienic during storage.