Investigating the quality of cargo transportation agency service at VOSA Haiphong is very necessary in order to carry out accurate assessment about pros and cons in the implementation of this service at VOSA Haiphong. From there, we can suggest some effective resolutions to contribute to enhance the quality of service that VOSA Haiphong is applying. The improvement in service quality can help to promote cargo transportation activity and stabilize the steady development of business at VOSA Haiphong.