Stock picker is divided into semi-electric and self-propelled type. The self-propelled type has high working efficient, easy and convenient to operate, it is suitable for high-frequency work. The semi-electric type is economical and suitable for general working frequency. Stock picker is suitable for a variety of occasions, such as aerial outdoor work, exhibition installation, replacement of lamps, property maintenance etc. It is flexible and light, up and down smooth, easy to operate, easy to start, one person can complete the operation easily.