The invention discloses a son-mother type multi-shooting-direction multi-sound tear bomb with a variable shooting range. The tear bomb comprises a mother bomb body, wherein a bottom fire seat is arranged at the bottom of the mother bomb body; bottom fire is filled in the bottom fire seat; the upper end of the bottom fire seat is provided with a shooting ammunition chamber; the upper end of the shooting ammunition chamber is provided with a high-pressure chamber; the outer side wall of the high-pressure chamber is provided with a lower pressure chamber; the upper end of the low pressure chamber is provided with a range increase rocket; the upper end of the range increase rocket is provided with a fire transmission tube; a gunpowder cavity is arranged inside the fire transmission tube; an upper layer bullet, a middle layer bullet and a lower layer bullet are sequentially arranged on the outer side wall of the fire transmission tube from top to bottom. The son-mother type multi-shooting-direction multi-sound tear bomb has the advantages that the structure is simple; the design is ingenious; the use is convenient; the upper layer bullet, the middle layer bullet and the lower layer bullet are distributed in a mutually staggered way; the large-area dispersing can be realized; meanwhile, certain sounds are generated during the bullet explosion; the pressures of booster cylinders are different, so that the condition of multiple sounds can be generated; great deterrent power and large-range lacrimation dispersing effects can be achieved.