The shortages and drawbacks of traditional geotechnical engineering monitoring and controlling system(GEMCS) is reviewed and the necessity and inevitability to establish a modern GEMCS are argued and discussed sufficiently. Modern GEMCS are fundamentally divided into two subsystems, remote management subsystem and site management subsystem respectively. Each of the subsystems is introduced and described subsequently by their components, main functions and capability in solving issues. Then, the predominant characteristics and advantages of the modern GEMCS are specified with two facets: components features and unlimited time-spatial domain monitoring. Applications in deep pit constructions are illustrated to visualize the functions of the modern GEMCS, followed by three research strategies of scholars from home and abroad are analyzed and summed up. Last, based on two levels, which are completions and evolutions of monitoring and controlling system itself as well as its generalizations in applications and promotions in geomechanics, developments supposed to achieve in modern intelligent GEMCS in 21st century are prospected and forecasted.