The application provides a pultruded plate, a pultruded girder and a
wind power blade. The pultruded plate comprises a first layer of pultruded plate; a second layer of pultruded plate which is stacked in a staggered manner with the first layer of pultruded plate; and a lightweight core material which is arranged between the first layer of pultruded plate and the second layer of pultruded plate and along the length direction of the first layer of pultruded plate and the second layer of pultruded plate. In the above structure, the lightweight core material is arranged between the two
layers of pultruded plate. By using the lightweight core material to replace the pultruded material with the same volume, the overall weight of the pultruded plate can be reduced, so that more stacking can be realized when the pultruded plate is used to manufacture a large
wind power blade, and the use of the pultruded plate on the large
wind power blade is limited or even avoided. Furthermore, the two
layers of pultruded plate are stacked in a staggered manner, so that the two
layers of pultruded plate have staggered parts while being stacked, thereby enabling the staggered parts of adjacent pultruded plates to be spliced with each other when the pultruded plates are stacked, facilitating the stacking operation, and improving the mechanical properties of the pultruded girder formed by stacking.