The invention discloses an electrical-
hydraulic control device of an anti-falling constraining device. The electrical-
hydraulic control device comprises a pump source module, an oil path control module, an energy accumulator module and a
motor module, the pump source module comprises a
hydraulic pump, a motor, a first overflow valve and a first stop valve, the oil path control module comprises a
check valve, a first electromagnetic
directional valve, a second electromagnetic
directional valve, a third electromagnetic
directional valve, a second overflow valve, a
safety valve, a first pressure
relay and a second pressure
relay, the energy accumulator module comprises an energy accumulator, a second stop valve, a third stop valve, a third overflow valve and a fourth electromagnetic directional valve, and the
motor module comprises a motor and a constraining belt fixing device. The electrical-
hydraulic control device is high in
automation degree and can be remotely controlled, the output torque can be precisely adjusted, the adjusting range is large, an object is constrained, and meanwhile the object cannot be damaged. The electrical-hydraulic
control mode can be adopted, the hydraulic drive
control mode can also be adopted, and the different requirements of a user for working with the high
automation degree or under the low-cost and bad working condition can be met.