Based on 360-degree feedback evaluation system, the authors tried to find out the answer for “Who" would be the assessor for team innovation. Two questionnaire surveys were carried out to collect the data from four different sources (team members, within-team leader, between-team supervisor and objective data) of 27teams with 169 participants. Data analysis showed that the data from team member is negative related to the objective data while the data from within-team leader are positively related to the objective data. And there is no significant relationship between the appraisal of between-team supervisor and the objective data. The authors analyzed the consistency and determined the weights of different evaluators for team innovation. Implications for future research and pragmatic ramifications for organizational practice are discussed in discussion.