From the aspect of institution economics， the electricity market is an institution system， in which information releasing arrangements is one important component. Based on the study on the behaviors of market participants， this paper establishes the frame of the inter-actions between market information and the learning and bidding decision behaviors of market participants. Then， the bidding acceptance probability（BAP） is applied to quantitatively describe the impacts of market information on the learning behaviors of traders. Finally， by using the BAP-based electricity market simulation， this paper analyzes and compares the different evolution of electricity market under different information releasing mechanisms. Researches show that different information releasing mechanisms make market participants obtain different trading knowledge and bidding strategies， and then result in the different evolution process and equilibrium of electricity market. However， those impacts vary as the relation between supply and demand changes.