People's Republic of China (PRC) Civil Code
Article 137 If a will is made in the form of audio and video recording, two or more witnesses shall be present to witness it. The testator and the witness shall record their names or portraits, as well as the year, month and day by audio and video recording.
Article 140 The following persons cannot be witnesses to a will:
(1) Persons without civil capacity, persons with limited civil capacity and other persons without witness capacity;
(2) Heirs and legatees;
(3) People who have an interest in the heirs and legatees.