In the context of rapid urbanization and increasing demand for infrastructure development, bidding activities in the construction industry in Ho Chi Minh City play an essential role in selecting competent contractors to ensure the progress and quality of works. This paper focuses on analyzing the current situation and proposing solutions to effectively manage bidding activities of construction enterprises, through qualitative research methods combined with surveys of 97 related subjects, including business owners, contractors, bidding parties, investors and appraisal teams. The survey results show that there are still many shortcomings such as cumbersome administrative procedures, lack of transparency, inappropriate intervention from related parties and uneven capacity among enterprises. Based on the theory of project management, fair competition and transparency of the bidding process, the article proposes a system of improvement solutions including: enhancing the application of digital technology in bidding management, improving the capacity of appraisal staff, making project information transparent and establishing an independent monitoring mechanism. The article aims to contribute to perfecting the bidding institution and improving management efficiency in the construction industry in the largest city in Vietnam.