The invention belongs to the technical field of stove equipment, and relates to an assembled anti-thermal-radiation barbecue device. The assembled anti-thermal-radiation barbecue device comprises a central grill, a top net, side nets, an anti-thermal handle, a barbecue plate, a small handle, a table plate, a stove box, a thermal shield board, sliding grooves, nuts and table legs; the thermal shield board can be vertically moved to prevent thermal radiation; large-size food such as a roast whole lamb and a roast suckling pig can be put on the central grill to be roasted, small-size food can be put on the barbecue plate to be roasted, and many people can roast the food while eating the food; the functions are complete, the food with the different sizes can be simultaneously roasted, and many people can simultaneously enjoy the pleasure of a barbecue through the freely-assembled table plate. The assembled anti-thermal-radiation barbecue device is reasonable in whole structural design, safe and reliable in use, attractive, practical, convenient to operate, flexible in food taking and putting and environmentally friendly in application.