A tamper-proof and easy-open sealing type food container includes a container body and a lid. A peripheral wall of the container body has at least one recessed wall portion disposed in one corner thereof and formed a retracted external space area and concave camber between the recessed wall portion and a hem. A pull tab extends from outside of a sealing rib that can be inserted into the concave camber. Moreover, there are two tamper-proof structures disposed on the lid. The first is that the first score line has to be poked through, and the second is the second score line needs to be torn off when opening the lid. When either structure is tampered, it could be easily distinguished, which ensures the integrity, safety, and qualities of the food inside the container. With these features plus its sealing effect, the present invention has dual function of tamper-proofing and easy-opening.