A scanning drive circuit and an organic light-emitting display. The scanning drive circuit comprises a first scanning driver which outputs selection signals in sequence, and a second scanning driver which outputs transmitting signals in sequence. The first scanning driver comprises a plurality of first cascade structures, and the second scanning driver comprises a plurality of second cascade structures. Each cascade structure of the first cascade structures or/and the second cascade structures comprises nine transistors and one capacitor. The scanning drive circuit adopts fewer clock signals and transistors, so that the reliability of the product circuit can be significantly improved, and at the same time design costs and production costs of products are reduced as well.