A multifunctional line focusing solar barbecue grill comprises a barbecue grill body. The barbecue grill body comprises a barbecue plate, a solar vacuum tube, an oil guide pipe, a line focusing type Fresnel lens and an arc-shaped shading cover. The solar vacuum tube is arranged in the middle of the barbecue plate, the oil guide pipe is arranged below the barbecue plate and connected with the solar vacuum tube end to end, and the line focusing type Fresnel lens and the arc-shaped shading cover are arranged above the barbecue plate. According to the multifunctional line focusing solar barbecue grill, solar energy is absorbed and focused on the solar vacuum tube to serve as a heat source, temperature rise is fast, the heat collecting efficiency is high, energy saving and environment friendliness are achieved, the structure is simple, operation is easy, and carrying is convenient. Barbecue food is placed on the barbecue plate, the requirement for the size of the barbecue food is improved, and more pleasure is added to the barbecue activity of a user. The multifunctional line focusing solar barbecue grill can be used in a room or on cloudy days, and has multiple functions, and various needs of the user can be met more easily.