The invention relates to a time-delay lubricating device, aims to solve the problem of continuously supplying engine oil to a turbine after an engine stops working, and provides a time-delay lubricator for an engine supercharger. The time-delay lubricator comprises a base, a filter, a one-way throttle valve, a housing and an oil storage inner bag; an oil inlet and an oil outlet are respectively formed in both sides of the base; a one-way throttle valve mounting hole is formed in the middle part of the base; a throttling hole, a one-way-throttle-valve one-way oil outlet and a one-way throttle valve screw threads are formed on the one-way throttle valve; the filter is positioned below the base; the oil inlet is communicated with the filter; the filter is communicated with the oil outlet; the one-way throttle valve is arranged in the one-way throttle valve mounting hole; the oil storage inner bag and the housing are arranged above the base; the one-way throttle valve is positioned in a connecting passage of the filter and the oil outlet and is connected with the oil outlet by the one-way-throttle-valve one-way oil outlet; the one-way throttle valve screw threads are communicated with the filter. The time-delay lubricator has a simple structure and is convenient to install, and damage, which is caused by sudden flameout, to the engine supercharger can be effectively avoided.