The situation of bringing a pet dog to the hotel varies according to the region, hotel policy and pet type. Some hotels allow pets, but there may be some restrictions and requirements. You can take the following steps to decide whether you can bring your pet dog to the hotel:

1. Find pet-friendly hotels: When choosing a place to stay, you can search and screen pet-friendly hotels in advance. Some hotels will indicate whether they accept pets in official website or other booking platforms.

2. Understand hotel policies: Before booking, be sure to read hotel policies and regulations carefully, especially the requirements for pets to stay. This may include pet size, breed restrictions, extra fees, necessary vaccine certificates, etc.

3. Inform the hotel in advance: If the hotel allows pets to stay, it is usually necessary to inform the hotel in advance, and it may be necessary to fill in the relevant pet registration form. Please be sure to contact the hotel at the time of booking or before check-in to find out their specific requirements.

4. Pay attention to pet etiquette: If you successfully bring a pet in, you must abide by the hotel's regulations on pets. Keep pets clean and tidy, and avoid running around in public areas or making noise.