The testator should sign it. If a witness is present when making a will, it must be signed by the witness and the testator before the will is valid; Among them, the testator's will will be written by one of the witnesses, signed and dated by the witness, the testator and the testator. According to the provisions of Article 135 of the Civil Code, a will by letter shall be witnessed by two or more witnesses, one of whom shall write and be signed by the testator, the writer and other witnesses, indicating the year, month and day. Article 136 stipulates that the printing of wills shall be witnessed by two or more witnesses. The testator and the witness shall sign on each page of the will and indicate the year, month and day. Article 137 stipulates that a will made in the form of audio and video recording shall be witnessed by two or more witnesses. The testator and the witness shall record their names or portraits, as well as the year, month and day by audio and video recording.

Legal objectivity:

Article 135 of the Civil Code of People's Republic of China (PRC) * * * When a will is made, there shall be two or more witnesses present, one of whom shall write it, and the testator, the agent and other witnesses shall sign it, indicating the year, month and day. Article 136 of the Civil Code of People's Republic of China (PRC) A printed will shall be witnessed by two or more witnesses. The testator and the witness shall sign on each page of the will and indicate the year, month and day. Article 137 of the Civil Code of People's Republic of China (PRC) If a will is made by audio and video recording, there shall be two or more witnesses present. The testator and the witness shall record their names or portraits, as well as the year, month and day by audio and video recording.