The invention discloses an automatic transmission start/stop control hydraulic oil way, relates to a transmission start/stop control hydraulic oil way, and aims to solve the problems of incapability of supplying oil to an automatic transmission by a traditional control oil way in flameout of an engine and long oil charging time and high gear shifting impact of the automatic transmission in reciprocating start/stop of the engine. A parallel start/stop control oil way is added in a hydraulic system; a traditional oil way structure is added with a start/stop oil supply oil pump and a logic control valve; in particular, a second oil way is connected with an electronic pump through a tenth oil way; branches of an eighth oil way are respectively connected with a start/stop valve and the electronic pump; a ninth oil way is connected with the start/stop valve and a start clutch; an eleventh oil way is connected with a sixth oil way and the eighth oil way; acting oil in the eighth oil way is charged in the sixth oil way; the oil is charged in the start clutch and a D-gear oil way system in a non-working state of a mechanical pump; the oil way capacity idle stroke in start of the transmission is eliminated; and the start gear shifting impact is reduced.