Disclosed are liquid crystal polymer particles capable of reducing dielectric loss tangent while suppressing surface roughness of the resin film, when added to a resin film. The liquid crystal polymer particles have a melting point of 270° C. or higher, wherein cumulative distribution 50% diametre D50 in the particle size distribution is 20 μm or less, and cumulative distribution 90% diametre D90 is 2.5 times or less of D50.