Abstract: With the investigation of total 1088 staff at two samples first in 6, then in 4 enterprises, employed by the psychological contract questionnaire developed by researchers, the construct dimension of psychological contract had been discriminated. The results of exploratory factor analysis (EFA) at one-sample participants revealed that both staff’s obligation and organization’s obligation contains two factor dimensions. One is called realistic obligation, the other is called developmental obligation. Two dimension constructs had been testified in the confirmatory factor analysis (CFA) at another-sample populations. The construct, content, and nomination of psychological contract dimension and their differences compared to western results were discussed at the end

Key words: psychological contract, realistic obligation, developmental obligation