Cui said compared with hotels, the locations and decor of minsu are more diverse, and they offer more unique services, with the operators keen to help guests. Tourists often bring their own local specialties from their hometown to share with others, he added.

Chen Xiao, 30, an office worker from Beijing, who once stayed in a minsu in Lijiang, Yunnan province, said: "The operators are often friendly and you can chat with other tourists to gather travel tips and information about the local lifestyle. It's also convenient to find people who want to car pool or travel together to cut costs."

Wang Hongjian, an official from Beijing government's law department, said: "Operators must get a legal permit, with basic conditions including having firefighting equipment and meeting public hygiene standards. They should standardize management, such as protecting tourists' privacy and adopting fair trade methods."

The new regulation also clarifies the definition of day trips in Beijing and addresses illegal activities such as forcing tourists to shop. It states that shopping during trips should be managed properly, with the city and district governments shouldering their responsibilities.

According to Wang, the city government should release more-detailed regulations about minsu in Beijing's urban and rural areas no later than Aug 1, 2018. Government departments including tourism, public security and environmental protection should each attend to their own duties and tighten supervision on the operation of minsu, he said.

"The detailed regulations will ensure the legality of minsu and satisfy the demands of tourists who want to enjoy leisure activities and sightseeing."