The present study's aim was investigating the effect of disclosure method on coherence and collective efficacy of basketball player girls. For this purpose, 12 members of Gilan teenager player team in the age range of 14 to 18 were investigated this research is a semi-experimental type and is performed using a pre-test posttest plan. The researcher, after coordinated action with the intended team, initially held a meeting with the coach and the team caption. This meeting was held for better justification of the research purpose and being familiar with psychological team needs and its current situation. The player, according to a predetermined plan passed group sessions, these sessions with the coach presence. After the meeting, the results were recorded by players using Martins collective efficacy and group environment questionnaire (GEQ). The results showed coherence promotion among players specially after the coach presence in the group meeting. And also the results of collective efficacy questionnaire showed preparation or readiness subscale promotion in between players.