The utility model provides a connection inserting base for a steel pipe scaffold. The connection inserting base is a hollow crossly conical body in whole and is formed by carrying out extrusion processing on a metal tubular blank through a die. An axial round hole matched with a scaffold stand rod in external diameter is formed at the center of the connection inserting base; four axial square holes with the same shape and size are communicated with the axial round hole and are uniformly distributed around the axial round hole; the two opposite side faces of each axial square hole are parallel vertical planes; the side face at the far end of each axial square hole, which is far from the center of the connection inserting base, is an inclined face which is inclined towards the inner side from top to down; and the slope of the inclined face is equal to the slope of the inclined face of a wedged inserting head on a scaffold transverse rod. The connection inserting base provided by the utility model has the advantages of simple forming technique, few used materials, light weight, low production cost, good toughness and rigidity of the inserting base, strong bearing capability, simplicity and convenience in operation of fixedly connecting the inserting base and the inserting head, large contact area, compactness in matching, difficulty of looseness and good connection stability.