A fuel supply apparatus comprising: an internal combustion engine that is provided on an apparatus; the apparatus is a movable body that travels in a forward direction, an intake passage formation portion which is connected to the internal combustion engine and in which an intake passage is formed; a throttle body that is connected to an upstream side of the intake passage formation portion and adjusts an intake amount to the internal combustion engine; an injector that is connected to the intake passage formation portion, has a first longitudinal direction, and injects fuel into the intake passage; the fuel supply apparatus being characterised in that it further comprises: a temperature rise part that is connected to the injector at an opposite side of the intake passage formation portion in the first longitudinal direction, has a second longitudinal direction, accumulates fuel supplied to the injector, and increases a temperature of the fuel, wherein the injector is arranged such that a first center axis line along the first longitudinal direction is inclined relative to a bore center axis line along a bore center in the throttle body and is separated from the bore center axis line toward an upstream side of the intake passage, the temperature rise part is arranged such that a second center axis line along the second longitudinal direction is inclined relative to the first center axis line of the injector and is further separated from the bore center axis line toward the upstream side of the intake passage, the temperature rise part comprises: a fuel chamber portion that accumulates the fuel supplied to the injector, the fuel chamber portion is arranged at a rearward position of the internal combustion engine and is arranged to overlap the internal combustion engine in a forward-rearward direction view, and the fuel chamber portion is arranged such that the second center axis line is at an angle closer to a right angle with respect to a forward-rearward direction than the first center axis line of the injector. an internal combustion engine that is provided on an apparatus; the apparatus is a movable body that travels in a forward direction, an intake passage formation portion which is connected to the internal combustion engine and in which an intake passage is formed; a throttle body that is connected to an upstream side of the intake passage formation portion and adjusts an intake amount to the internal combustion engine; an injector that is connected to the intake passage formation portion, has a first longitudinal direction, and injects fuel into the intake passage; a temperature rise part that is connected to the injector at an opposite side of the intake passage formation portion in the first longitudinal direction, has a second longitudinal direction, accumulates fuel supplied to the injector, and increases a temperature of the fuel, wherein the injector is arranged such that a first center axis line along the first longitudinal direction is inclined relative to a bore center axis line along a bore center in the throttle body and is separated from the bore center axis line toward an upstream side of the intake passage, the temperature rise part is arranged such that a second center axis line along the second longitudinal direction is inclined relative to the first center axis line of the injector and is further separated from the bore center axis line toward the upstream side of the intake passage, the temperature rise part comprises: a fuel chamber portion that accumulates the fuel supplied to the injector, the fuel chamber portion is arranged at a rearward position of the internal combustion engine and is arranged to overlap the internal combustion engine in a forward-rearward direction view, and the fuel chamber portion is arranged such that the second center axis line is at an angle closer to a right angle with respect to a forward-rearward direction than the first center axis line of the injector.