An impinging nozzle was designed to investigate the motion properties of spray particles from impinging nozzle at atmospheric environment. Phase doppler particle analyzer(PDPA) was used to record the effects of the nozzle pressure on the motion properties of spray particles. The distributions of axial velocity and radial velocity for particles were analyzed emphatically. Results indicate that as the distance between the measurement section and the nozzle increases from 25 mm to 100 mm, the mean diameter (D₃₀) of the particles at the pressure drop of 2.2 MPa increases from 44.26 μm to 61.26 μm and from 42.88 μm to 55.49 μm at the pressure drop of 2.6 MPa. The further away from the nozzle, the smaller the axial velocity and the radial velocity of the particles. The axial velocity of the particles decreases and the radial velocity fluctuation increases with distance between the measuring points and the center axis increasing. The D₃₀ of the particles decreases when the nozzle pressure increases, and the distribution uniformity of the particles is better for the axial velocity but worse for the radial velocity.