Laser radar transmitting module and laser radar

The utility model relates to a laser radar transmitting module and a laser radar. The laser radar transmitting module comprises a shell, a transmitter port, a semi-transparent and semi-reflecting mirror and a single lens, wherein a transmitting channel is arranged in the shell; the transmitter port is arranged at the incident end of the transmitting channel and can transmit a laser beam towards the emergent end in the transmitting channel; the semi-transparent and semi-reflective mirror is obliquely arranged on a propagation light path of the laser beam and is provided with an incident surface through which the laser beam enters and passes; the single lens is arranged between the semi-transparent and semi-reflecting mirror and the emitter port; stray light formed by the laser beam at the semi-transparent and semi-reflecting mirror can penetrate through the single lens and is stopped at one side far away from the laser beam by a stop surface of the single lens; the arrangement of the single lens enables stray