The invention relates to a testing device for the roof
greening rainwater detention storage performance of a sloping rood, which comprises a rainwater
simulation module, a sloping roof
greening simulation module, a testing module, a water purification module, a support platform, a rectangular load-bearing frame, a main water pump, secondary water pump and a
water storage tank, wherein the slopingroof
greening simulation module is placed on the support platform, the support platform is installed on the rectangular load-bearing frame, the rainwater simulation module is arranged above the sloping roof greening simulation module, the sloping roof greening simulation module includes a structure frame, a plurality of replaceable module
layers, a lifting mechanism and an angle meter, the liftingmechanism is arranged between the structure frame and the support platform, and the angle meter is arranged in the structure frame; and the testing module includes a measuring cylinder, a rain gaugesensor and a
soil moisture sensor. Compared with the prior art, the testing device realizes real-time measurement for a detention
storage effect imposed on different rainfalls by different slopes anddifferent roof greening applications, the
control mode is simple and convenient, and great convenience can be brought to the roof greening research.