It is not against the law to paint a national flag.
 However, the National Flag and its design may not be used as a trademark or an advertisement, or for private funeral activities. Whoever desecrates the National Flag of the People's Republic of China by burning, damaging, scrawling on, defiling, or trampling on it in public places shall be investigated for criminal responsibility according to law. If the circumstances are relatively minor, he shall be detained by the public security organ for not more than 15 days. The National Flag and its design may not be used as a trademark or advertisement.
 The national flag is a symbolic flag of a country. It reflects a country's political characteristics and historical and cultural traditions through certain styles, colors and patterns. In general, the national flag of another country shall not be flown on the territory of a sovereign country. The main colors of national flags in the world are red, white, green, blue, yellow, black, etc. These colors have certain meanings, and most of them are rectangular in shape.
 According to Article 15 of the National Flag Law of the People's Republic of China, when the National Flag is displayed, it shall be placed in a prominent position.
 When the National Flag and other flags are held in a procession, the National Flag shall be in front of the other flags.
 When the National Flag is displayed at the same time as other flags, the National Flag shall be placed at the center, high or prominent position.
 When the national flags of two or more countries are displayed simultaneously in foreign affairs activities, they shall be displayed in accordance with the provisions of the Ministry of Foreign Affairs or international practice. Article 16 When the National Flag is raised or lowered from an upright pole, it shall be raised or lowered slowly. The National Flag must be raised to the top of the pole when it is raised and must not be landed when it is lowered.
 When the National Flag is lowered at half mast, it shall first be raised to the top of the staff and then lowered to a point where the distance between the top of the flag and the top of the staff is one-third of the whole length of the staff. When lowering the National Flag, it shall be raised to the top of the staff first and then lowered.
 Legal basis
 Article 15 of the Law of the People's Republic of China on the National Flag When the National Flag is displayed, it shall be placed in a prominent position. When the National Flag and other flags are held in a procession, the National Flag shall be in front of the other flags. When the National Flag is displayed at the same time as other flags, the National Flag shall be placed at the center, high or prominent position. When the national flags of two or more countries are displayed simultaneously in foreign affairs activities, they shall be displayed in accordance with the provisions of the Ministry of Foreign Affairs or international practice.
 Article 16 of the Law of the People's Republic of China on the National Flag When the National Flag is raised or lowered from an upright pole, it shall be raised or lowered slowly. The National Flag must be raised to the top of the pole when it is raised and must not be landed when it is lowered. When the National Flag is lowered at half mast, it shall first be raised to the top of the staff and then lowered to a point where the distance between the top of the flag and the top of the staff is one-third of the whole length of the staff. When lowering the National Flag, it shall be raised to the top of the staff first and then lowered.