Abstract: Based on the fit theory,a risk quality house is built through adopting the unfit degree to measure the risk of insufficient capacity of the construction project manager in the individual capacity and the capacity of the construction environment requirement.A comprehensive evaluation model of the capacity of construction project manager,index system of construction environment evaluation,and standardized composite scale value of binary semantic conversion is established.The capacity of the construction environment requirement is determined by the support degree of the capacity attribute to the unfriendly project environment.Three levels of the unfit degree are analyzed,including the individual-job unfit,the individual-organization unfit and the individual-vocation unfit.The risk of insufficient capacity is measured according to the barrel theory,a track construction project being the example of the verification of measurement.

Key words: risk of insufficient capacity, individual-environment fit, construction project manager