This paper empirically studies the impact of the seller's auction frequency on the auction format and pricing, and discuss its relationship with the risk attitude based on the theory of Chen et al. (2013). This paper also confirms its impact on the auction format and pricing, and also excludes the effect of competition between buyers. We have the conclusion that sellers with more frequent auctions are more likely to attract more risk-adverse buyers. This paper also complements the conclusion of Anderson et al. (2007) based on the theory of Chen et al. (2013). In addition, we estimate change in sales rate and transaction price between different format and has the result, which is similar to Chen et al.(2012).