The utility model provides a template structure for forming hang continuous case soffit fillet of basket construction concrete, this template structure includes: angle cleat, support angle steel, connector plates and convex angle mould board, convex angle mould board includes first end and second end, and the first limb and the die block combination steel form of angle cleat are connected, and the second limb of angle cleat is connected with the first end of convex angle mould board, the first limb that supports the angle steel supports on the horizontal lumber skid of die block board, supports the second limb of angle steel and is connected with the second end of convex angle mould board, connector plates is located convex angle mould board, supports between angle steel and the angle cleat to respectively with convex angle mould board, support angle steel and angle cleat welded connection. Utilize the utility model discloses a continuous case soffit of reinforced concrete after the template structure construction drawing of patterns and side transition arc surface satisfy the line type designing requirement of roof beam portion transition arc surface, after the drawing of patterns transition arc surface outward appearance beautifully, do not have appearance imperfections such as seam, boss or pit.