The invention relates to a device for simulating 
reciprocating flow riverway in-situ bottom mud resuspension and a 
simulation technology thereof. According to the device for simulating the 
reciprocating flow riverway in-situ bottom mud resuspension, an upstream flow 
water level control device comprises a first water inlet 
pipe, an upstream 
water level control water tank, an upstream 
backflow simulation water tank, a first 
siphon backflow pipe and a first water outlet 
pipe; a water tank device comprises a water tank body, a bottom 
mud tank, a flow velocity gauge, a 
turbidity meter and at least two sampling ports; a downstream tide 
simulation control device comprises a tide 
water level control tank, a second 
siphon backflow pipe, a tide backflow simulation water tank, a backflow water tank, an overflow pipe, a variable frequency water pump and a second water outlet pipe; an experiment platform 
automatic control device comprises a first resistance-type liquid level meter, a second resistance-type liquid level meter, a first pulling line, a second pulling line, a first 
direct current brushless motor, a second 
direct current brushless motor, a first movable pulling plate and a second movable pulling plate. The simulation technology comprises the steps of bottom mud preparing, overlying water preparing, flow velocity gauge and 
turbidity meter installing, unidirectional flow simulating, tide 
reciprocating flow simulating and 
water sample measuring. The simulation accuracy is high, and the device for simulating the reciprocating flow riverway in-situ bottom mud resuspension and the simulation technology thereof can be popularized.