First of all, you should have more than two years of work experience and take the exam.
Application conditions: (meet one of the following conditions)
1. Assistant Network Security Engineer: 1, bachelor degree or above or equivalent; 2. College degree or above or equivalent with relevant practical experience;
2. Network security engineer: 1, who has passed the qualification certification of assistant network security engineer; 2. Graduates with postgraduate education or equivalent; 3. Bachelor degree or above or equivalent and engaged in related work for more than one year; 4. College degree or above or equivalent and engaged in related work for more than two years.
3. Senior network security engineer: 1, who has passed the qualification certification of network security engineer; 2. Have a graduate degree or above or equivalent and have been engaged in related work for more than one year; 3. Bachelor degree or above or equivalent and engaged in related work for more than two years; 4. College degree or above or equivalent and engaged in related work for more than three years.
Other certifications related to network security are as follows:
CIW network security certification
NISC national informatization network security engineer
NSACE network information security engineer certification system
INSPC Information Network Security Professional Certification
National information network security engineer certification
CCSP Cisco's security certification
CISSP international registered information system security experts, etc.