You can go directly to the local police station to find the relevant personnel for mediation and warning.
Square dancing itself is not illegal, but if the noise created causes an infringement on the normal life and rest of the neighboring people, then it constitutes a violation of the law.
According to the "Environmental Noise Pollution Prevention and Control Law", Article 36, paragraph 2:
"Noise-sensitive buildings" refers to hospitals, schools, institutions, scientific research units, residential and other buildings that need to be kept quiet. This shows that the behavior of square dancing and making noise in residential areas is illegal.
According to Article 28 of the Law of Punishment for Public Security Administration:
Anyone who violates the law on the prevention and control of noise pollution in social life and creates noise that interferes with the normal life of other people shall be given a warning, and anyone who fails to rectify the situation after being warned shall be sentenced to a fine of not less than two hundred yuan and not more than five hundred yuan.
Expanded:
Square dancing legally speaking does not violate the law, but if the music played during square dancing, exceeds the prescribed decibel, it constitutes the "Chinese People's Republic of China *** and the State of the Prevention and Control of Environmental Noise Pollution Law" of the noise pollution of social life, belonging to the illegal behavior.
"The Chinese people *** and the State Environmental Noise Pollution Prevention and Control Law" Article 45 provides:
Prohibit any unit or individual in the urban areas of noise-sensitive construction of the concentration of the use of high-pitched broadcasting loudspeakers. In urban urban streets, squares, parks and other public **** places to organize entertainment, assembly and other activities, the use of audio equipment may produce interference with the surrounding living environment of excessive volume, must comply with the provisions of the local public security organs.
The provisions of Article 58:
The public security organs shall give a warning and may impose a fine.
The provisions of the first paragraph of Article 61:
Units and individuals who are endangered by environmental noise pollution have the right to request the perpetrator to remove the harm; if the damage is caused, compensation for the loss shall be made according to law. So when the music played by the square dance reaches the noise pollution, you can report and complain to the public security organs, and the public security organs will be punished.
If the public security organs do not stop after punishment, the units and individuals harmed by environmental noise pollution can go to court to sue the victim to exclude hazards or compensation for losses, if the judgment comes into force and does not stop the illegal behavior, you can apply to the court for compulsory execution.
Baidu Encyclopedia-Square Dance