1, which must be made by the testator himself and describe all the contents of the will in person; 2. More than two witnesses must be invited to testify; 3. At the beginning of recording, the testator and the witness must indicate their names, gender, age, native place, occupation, work unit and home address respectively; 4. The testator must specify the specific address and year, month, day and time of making the recorded will; 5. After the recording is made, it shall be sealed and kept, and the cover shall be signed by the testator and witnesses, indicating the year, month and day. Then, it is kept by the testator or witness; 6. At the beginning of inheritance, witnesses and heirs will be present to check the integrity of the cover. Only under the above circumstances will the will take effect. Article 17 of the Inheritance Law of People's Republic of China (PRC) shall be notarized by the testator through the notary office. A self-made will is written and signed by the testator, indicating the year, month and day. A will that entrusts others to write on behalf of others shall be witnessed by two or more witnesses, and one of them shall write on behalf of others, indicating the year, month and day, and shall be signed by the agent, other witnesses and the testator. If a will is made by recording, there shall be two or more witnesses present. A testator may make an oral will in an emergency. An oral will shall be witnessed by two or more witnesses. After the emergency is lifted, if the testator can make a will in written or recorded form, the oral will made is invalid.