This product is an intelligent monitor for construction safety of formwork support system with corresponding supporting wireless intelligent sensors developed based on new-generation information technologies such as the Internet of Things, cloud computing, and wireless sensing. The product can be adopted in the process of construction works and municipal bridge construction to automatically monitor key parameters such as the settlement of concrete faces, axial force of vertical poles, horizontal displacement, inclination of vertical poles that reflect the working status of the formwork support system. It can automatically alarm in case of limit exceeding, and detect hidden safety hazards in time, and upload monitoring data and results in real-time via a wireless network. It can replace the conventional optical instrument monitoring method and effectively ensure the construction safety of formwork engineering. For construction units and competent departments, remote real-time monitoring can be realized through cloud platforms or mobile phone clients.