Log in to the provincial construction industry supervision information platform to apply for deregistration. The specific operations are as follows:

1. Log in to the provincial construction industry supervision information platform and find the menu item Builder. On the left Find Cancel Registration in the menu, click Cancel Registration, and a Cancel Registration list option will appear. Find the category of construction engineer that needs to be cancelled, and click Cancel Registration at the end of the information.

2. After entering the deregistration page, you need to choose whether the personal information automatically generated by the system is handled by the construction engineer himself or the company. Then select the reason for deregistration, provide supporting documents, and save the data.

3. Return to the deregistration list page, check the check box in front of the construction engineer who needs to deregister, and click Report above.

4. Determine the reported construction engineer, confirm it is correct, and then fill in the contact person and contact number.

5. Return to the registration list, you can see that the construction engineer's status is under approval, click on the construction engineer's name to enter the print page, and finally click on print in the upper left corner to complete the process.

Constructor refers to a registered professional engaged in key positions of general contracting and construction management of construction projects. The construction engineer qualification system originated in the United Kingdom, a Western capitalist country, in 1834. The meaning of a construction engineer refers to a comprehensive person who understands management, technology, economics, and regulations, and has a high overall quality. He must have not only a theoretical level, but also rich practical experience and strong organizational capabilities.