Needle pressing strip on flat knitting machine and assembly structure of needle pressing strip

The needle pressing strip comprises a needle pressing strip body arranged in a knitting needle groove formed by two adjacent insertion pieces on a needle plate structure of the flat knitting machine, a needle pressing face is arranged at the lower end of the needle pressing strip body and used for being attached to the upper end face of a knitting needle, and a groove used for being embedded with a dovetail plug strip of a needle plate to limit the needle pressing strip body is formed in the needle pressing strip body. The needle pressing structure has the advantages that under the action of the needle plate dovetail plug strip, the needle pressing strips with different matched sizes can be selected according to the actual condition, then the first gap between the knitting needle and the needle plate dovetail plug strip is controlled to be adjusted to the most reasonable minimum gap, the needle pressing surface at the lower end of the needle pressing strip is lengthened, the shaking of needle turning and need