The utility model discloses a scattered material collection guiding device of a spreading machine. The scattered material collection guiding device comprises a guiding trough (1) and a connecting frame (2), wherein the guiding trough (1) consists of a trough rear plate (1-1), a trough soleplate (1-2) and a trough front plate (1-3), the trough rear plate (1-1) is connected with a front lower baffle plate (3) of the spreading machine through the connecting frame (2) and fixed by a bolt set (5), the guiding trough (1) is arranged below a push wheel (4), the trough front plate (1-3) is arranged on the outer edge of the push wheel (4), and discharging ports on two ends of the guiding trough (1) stretch to the outer side of a traveling device (6). In the process that the spreading machine receives the poured material of a self-dumper, the scattered materials are collected and guided to the ground outside two sides of the traveling device so as not to influence the integral flatness of a spreading layer, so that the stability of a traveling and leveling system can be effectively improved, and the influence on the road spreading layer caused by the situation that the scattered materials are accumulated in front of the traveling device and the asphalt mixture is adhered onto the traveling device can be fundamentally solved.