The portable water sampling pump is an electric portable water sampler which can be used for outdoor sampling, online monitored sampling, environmental monitoring stations, water treatment and gas and liquid sampling etc. The environment monitoring equipment is often used for emergency monitoring and water sampling as a stratified water sampler and portable water sampler. It can be used to realize high specific gravity high viscosity liquid sampling, sampling of suspensions with solid particles and stratified sampling. The suction head can be deep to 10 meters.