1. Adequate supply: Qingping bird's nest market is one of the earliest professional markets in China, and the supply of bird's nest is relatively sufficient, which may be low in cost.

2. Centralized procurement: the sales of bird's nest in this market are mainly based on quantity, and the price is relatively low.

3. Chemical treatment: In order to increase profits, some merchants may carry out chemical depilation or bleaching treatment on bird's nest, resulting in low price of bird's nest.

4. Sales strategy: Some businesses may adopt the sales strategy of small profits but quick turnover to attract more consumers at low prices.

It should be noted that although the price is low, it is still necessary to choose carefully and pay attention to quality and safety when buying bird's nest.