Can regular employees of public institutions stop paying wages if they don't come to work for more than half a year?

You can terminate the employment contract.

According to Article 15 of the Regulations on Personnel Management of Public Institutions, if the staff of public institutions are absent from work for more than 15 working days, or for more than 30 working days in 1 year, the public institutions may terminate the employment contract.

Sending a text message to the department head is not a leave of absence, and the formal leave formalities have not been fulfilled. It should be absenteeism. More than half a year, has been in line with the provisions of article fifteenth.

The specific procedures and time of leave shall be stipulated by the unit or the local government, such as the Measures for the Administration of Leave for Staff in Dejiang County.

Extended data

Chapter IV Labor Contract

Article 12

The term of employment contracts concluded by institutions and their staff is generally not less than 3 years.

Article 13

The probation period is 12 months if the employment contract concluded between the staff and the institution for the first time is more than 3 years.

Article 14

If the staff of a public institution has been working continuously for 10 years, and the retirement age is less than 10 years, the public institution shall conclude an employment-to-retirement contract with them.

Article 15

If the staff of a public institution is absent from work for more than 15 working days in a row, or for more than 30 working days in 1 year, the public institution may terminate the employment contract.

Article 16

If the staff of a public institution fail to pass the annual assessment and do not agree to adjust their posts, or fail to pass the annual assessment for two consecutive years, the public institution may terminate the employment contract with a written notice 30 days in advance.

Article 17

The staff of a public institution may terminate the employment contract by giving a written notice to the public institution 30 days in advance. However, unless otherwise agreed by both parties to terminate the employment contract.

Article 18

If the staff of a public institution is dismissed, the employment contract shall be terminated.

Article 19

If the employment contract is dissolved or terminated according to law, the personnel relationship between the institution and the person whose employment contract is dissolved or terminated shall be terminated.

References:

Regulations of People's Republic of China (PRC) Central Committee and Ministry of Human Resources and Social Security Public Institutions on Personnel Management (full text)?