Anchor plate and spiral reinforcement are important embedment parts in prestressed anchorage area, they work together with structural concrete to bear the huge concentrated load from the anchor. Commercial and engineering official use of anchor plate and screw bar, should meet the approved standard test. The anchoring area of prestressed structures may have only one anchorage device, or there may be multiple anchorage devices distributed in various ways. The stress of concrete and anchor plate in this area is complex and varied, and it is difficult to provide a consistent calculation criterion in the structural design code. Prestressing technology originated in Western Europe, where the authorities have formulated technical approval standards, product producers and structural designers are strictly followed. The product design of anchor plate and screw bar cannot be completely separated from calculation, at least estimation is required. The finite element analysis method can discuss the stress distribution of anchor plate, which is helpful to draw up the design of anchor plate. Based on "Discussion on Safety of Prestressed anchoring Area Part III" published in "Prestressed Technology" No. 3, 2012, this paper draws up a series of dimensions of anchor cushion plate and spiral reinforcement under circular clip anchors, which can be used by product manufacturers for product design, and can also be used as a reference for engineering design and construction units. The estimation method in this paper refers to the calculation criteria of PTI standard used for ordinary steel plate processing anchor plate, and only uses simple structural mechanics and empirical parameters. In this paper, only the anchor fittings of the 1 ~ 37 hole anchorage of Phi 15 steel strand are formulated. Practical experience is very important for prestressing technology. This paper lists the dimensions of anchor plate, spiral bar and bellows of French Freyssinet system, Swiss VSL system, Chinese QM, OVM and QVM system for reference. This paper considers the relevant requirements of China's railway department.