The purpose of the study explored the altruistic personality, team-member exchange (TMX), and team interdependence how to affect organizational citizenship behavior (OCB) in team which is the sample of team members. The examing method used the cross-level analysis. To analysis the interactions of cross-level issues, enriching the antecedents of OCB in team contexts. We survey the 227 military of ROC company teams, while the samples are 681 of company team members (platoon leader) which the team with three members.Using the questionnaire analysis methond and hierarchical linear model (HLM) in this study. As a result, the partial of the direct affect and the partial of interactions of cross-level were supported. This study found: (1) Altruistic personality would not significantly direct postive affect the OCB. (2) TMX and interdependence will significantly effect on OCB. (3) The interdependence significantly moderated the relationship between TMX and OCB, when the high-interdependence situation, the relationship between TMX and OCB was weaken, even though attained the negative effect on OCB. These discussion, limitations, further research directions, theoretical and managerial implications are discussed at end.