While the construction industry contributes to the achievement of targets for social andrneconomic growth, there are still a number of problems. One of the key ones is the unethicalrnconduct of its professionals that affects companies, efficiency, time and expense andrninfluences them. It is necessary for professionals to use applicable codes or guidelines tornexercise their knowledge of ethics. The more professionals practice their approaches tornethical questions, the more likely it is to make the right decisionwhen the pressure isrnon.Therefore, the primary goal of this research is to examine professional ethics practices andrnidentify the most unethical practices in Ethiopia's construction industry, analyze the reasonsrnwhy people behave unethically and try to come up with realistic solutions that could bernsufficient to eradicate these negative effects by assessing the current conditions in thernEthiopian Roads Administration /ERA/.To achieve the above-mentioned goal, this researchrnwas undertaken by conducting a literature review on professional ethical practices in thernconstruction business, followed by a full questionnaire survey. By utilizing an exploratoryrnresearch design and factor analysis, the key findings of the study are, economic downturn,rndelayed salaries of workers, location of the project (boarder area), professional indiscipline,rnpersonal behavior, excessive love for money (greed), lack of strict contractual laws,rnandoverlapping between personal and professional ethics, are the main variables contributingrnto acting unethically.The degree of unethical behavior in the construction industry as arnwhole,desire to engage in unethical behavior while performing professional duties,rnindividuals or organizations engaging in the work without the necessary qualification,rnexperience or training, under bidding, professionalâ€™s commitment conflicting with clientsrninterest, professionals not safeguarding the clientâ€™s belongings from going missing or beingrnstolen, professionals do not treat employees fairly, professionals are devoted to theirrnsuperiors and management, are the most common form of unethical behaviors observedrnamong professionals in Ethiopian construction industry.According to the research, unethicalrnbehavior has a negative influence on cost and project quality. It's a good idea to have a codernof ethics that's well-followed.It is vital to establish a program to ensure that professionalsrnhave the necessary traits, duties, attributes, and ethical conduct at all times.