The reason why Zibo barbecue has suddenly become popular in recent years is mainly due to the following reasons:

1. Local characteristics: As a neighboring city to Dongying City, Zibo has a unique geography and cultural characteristics, among which barbecue culture is one of the local characteristics, attracting many barbecue enthusiasts and food lovers to come and taste it.

2. Extensive publicity: The local government and media in Zibo also vigorously promote the local barbecue culture, including TV advertisements, WeChat public accounts and other channels, injecting new vitality into the development of the local barbecue industry.

3. Improved quality: As consumers pursue barbecue quality, local barbecue restaurants have gradually improved in terms of ingredients, grilling technology, and environment, bringing consumers a higher-quality food experience.

4. Internet innovation: With the rise of the Internet in recent years, many local barbecue restaurants have also begun to use online platforms for promotion and sales, and also provide consumers with more convenient options through takeout platforms and e-commerce platforms. Ordering and purchasing channels have further promoted the development of the barbecue industry.

In short, the reason why Zibo barbecue has suddenly become popular in recent years is not only closely related to local characteristics and quality improvement, but also inseparable from the use of publicity and promotion and Internet innovation.