A durable door suction rod comprises a clamping shell (1) and a sucker body (8). The right end of the sucker body (8) is connected with a rod shaft (2). A rubber anti-collision sleeve (18) is arranged on the outer surface of the sucker body (8). The rubber anti-collision sleeve (18) wraps the left half part of the sucker body (8). The rubber anti-collision sleeve (18) and the sucker body (8) are glued and fixed. The rod shaft (2) is connected with the clamping shell (1) through a stretching structure (3). A buffer shaft (4) is arranged in the center of the right end of the rod shaft (2). A buffer space (5) used for arranging the buffer shaft (4) is formed in the clamping shell (1). A pressure air space (9) is formed in the part, located on the right side of the buffer space (5), in the clamping shell (1). A passing cavity (6) which communicates with the pressure air space (9) and the buffer space (5) is formed between the pressure air space (9) and the left side part of the buffer space (5). The part, located on the left side part of the buffer space (5), of the passing cavity (6) is provided with a set of ejection heads (7).