Construction work projects that are currently underway during the pandemic must implement a protocol to prevent the spread of COVID-19. The purpose of this study was to analyze the implementation of the prevention protocol in several construction work projects in Sumatera Utara. The data research was collected from the Indrapura-Kisaran highway, the Kuala Tanjung-Tebing Tinggi-Parapat highway, and the RIS Maduma-Dairi University Flats using questionnaire and interviews method. This study result is the contractor provides health facillities in an effort to prevent the spread of COVID-19 as follows clinic room compliance only 50%; additional facilities (blood pressure meter, drugs, and medical officer) also worker immunity (hand washing facilitie, tissue, and face mask) has been fulfilled 100%; while cooperation facillities reaches 73%. The nutritional content needs of the workers are met to maintain their immunity. The contractors, consultants, and project owners of the three construction projects have implemented the prevention protocol in accordance with the minister's instructions.