1. The condition for the court to make a written will is that the testator has full capacity for civil conduct, that is, a person who has reached the age of 18 and is in a normal mental state voluntarily makes a will, and the will is written by the testator, signed and marked with the year, month and day, then the court decides that the will is valid.

2. Legal basis: Article 134th of the Civil Code of People's Republic of China (PRC).

A self-made will is written and signed by the testator, indicating the year, month and day.

Article 136

Printing a will should be witnessed by more than two witnesses. The testator and the witness shall sign on each page of the will and indicate the year, month and day.

Article 138

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 eliminated, if the testator can make a will in writing or in the form of audio and video recording, the oral will made is invalid.

Second, how long will the will take effect?

The effective time of a will is the time when the decedent dies. Making a will is a private right of citizens, which is manifested in the free disposal of personal property. Citizens can decide their heirs in their wills, and the heirs can be their legal heirs, countries, collectives or other citizens.