The information cocoon effect is becoming increasingly prominent. Secretarial positions, which serve as crucial nodes for organizational information acquisition, processing, and dissemination, are susceptible to being trapped in closed information environments. Based on the Push-Pull-Mooring (PPM) theoretical framework, this study constructs a theoretical model incorporating information similarity, social influence, and decision-making rationality as push factors; information overload, perceived active control of information, and algorithmic influence as pull factors; and information selection tendency and behavioral rigidity as mooring factors. We design an indicator system for each level of the model and empirically test it through a questionnaire survey of secretarial staff. The study reveals the multi-dimensional mechanisms underlying secretarial personnel’s willingness to remain in information cocoons. It also provides recommendations from the perspectives of secretarial staff, platform algorithms, and the information supply side to help secretaries break out of the information cocoon predicament and enhance their information work performance
