The invention relates to a front bus engine mounting system. The front bus engine mounting system comprises a left engine front support, a right engine front support, an engine front bracket, a left engine front mounting cushion, a right engine front mounting cushion, a left engine rear support, a right engine rear support, a left engine rear bracket, a right engine rear bracket, a left engine rear mounting cushion and a right engine front mounting cushion, wherein the left engine front support and the right engine front support are symmetrically arranged on the left side and the right side of the front end of an engine; and the left engine rear support and the right engine rear support are symmetrically arranged on the left side and the right side of the rear end of the engine. According to the front bus engine mounting system provided by the invention, shortcomings in the prior art can be avoided; the assembling efficiency is increased; the shock absorbing effect is improved; assembling errors can be avoided; the transmission efficiency can be ensured; and the normal use of a transmission shaft can be also ensured.