The purpose of this research is to examine the challenges of management and construction in construction projects with regard to two factors: risk and time in completing the project. One of the signs and indicators of development in a country is the amount of construction projects in it. The implementation of a construction project has various dimensions and can bring many challenges. These project challenges can arise under the influence of various factors such as lack of proper management, price fluctuations, some national regulations, and weather issues. Managing the challenges of construction projects is essential and is very effective in better advancing construction projects. This research is applied in terms of purpose and descriptive-exploratory in terms of nature. In terms of data collection method, it is a survey and the research method is mixed (Qualitative-quantitative). The statistical population of the present study was all contractors, employers, and supervisors of construction projects in Chabahar city; For the qualitative part, the sample size was considered based on the snowball method until theoretical saturation was reached. To identify risks from the data collected through interviews, the grounded theory approach and coding were used. These codes were open-ended, axial, and selective. In this study, all statistical analyses in the qualitative part were performed with the help of Nvivo8 software. Poor management is one of the important risks in the field of construction projects, which can disrupt the project progress process or cause delays in project implementation through wrong decisions. One of the important pillars in every project is human resources and people involved in the project. Selecting capable people and also trying to empower them is very important. The results showed that design errors and rework, changes in design and redesign, using inexperienced people to design the project, and failure to determine requirements during design can cause risks in carrying out construction projects. Other challenges in the field of construction projects were time challenges. Time management actually includes monitoring and controlling the start time, duration of execution and timely completion of executive activities, timely provision and procurement of human resources, machinery and materials, and predicting possible delays and taking appropriate measures to prevent delays using project control and scheduling methods.