Aiming at the limitation of hydraulic system fault on the efficiency of construction machinery and equipment,a remote hydraulic cylinder status detection system based on LabVIEW was proposed.The system architecture was divided into three layers.The field device layer is based on the NI data acquisition card as the core to realize data acquisition and preliminary processing hardware platform.The data control layer mainly uses serial communication and host computer programming to realize data acquisition,processing,data storage and position alarm and other functions.The monitoring access layer is mainly based on the TCP communication protocol to realize remote data transmission and remote fault diagnosis.The test results show that the data transmission effect of the LabVIEW remote monitoring system is stable and reliable.