A refrigerant distributor configured to distribute refrigerant from a refrigerant supply pipe to first and second refrigerant outflow pipes , the refrigerant distributor comprises: a supply path to which the refrigerant supply pipe is configured to be connected, the downstream end portion of the supply path being formed by a tapered surface whose diameter gradually decreases toward the downstream side in the refrigerant flow direction, wherein the tapered surface and the supply path are coaxial; a reducing portion extending straight from a downstream end of the supply path and having a diameter smaller than a diameter of the supply path; a refrigerant stirring chamber communicating with a downstream end of the reducing portion and configured to stir refrigerant from the reducing portion ; a refrigerant strike surface facing the downstream end of the reducing portion with a predetermined interval and configured such that refrigerant from the reducing portion strikes the refrigerant strike surface ; a first branch channel having an upstream end and a downstream end, the upstream end communicating with a portion of the refrigerant stirring chamber separated from the refrigerant strike surface , the downstream end being configured to be communicating with the first refrigerant outflow pipe ; and a second branch channel having an upstream end and a downstream end, the upstream end communicating with a portion of the refrigerant stirring chamber separated from the refrigerant strike surface and from the upstream end of the first branch channel , the downstream end being configured to be communicating with the second refrigerant outflow pipe ; characterized in that the length of the reducing portion is larger than the length of the supply path including the tapered surface , wherein the diameter of the reducing portion is uniform from the upstream end to the downstream end thereof. a supply path to which the refrigerant supply pipe is configured to be connected, the downstream end portion of the supply path being formed by a tapered surface whose diameter gradually decreases toward the downstream side in the refrigerant flow direction, wherein the tapered surface and the supply path are coaxial; a reducing portion extending straight from a downstream end of the supply path and having a diameter smaller than a diameter of the supply path; a refrigerant stirring chamber communicating with a downstream end of the reducing portion and configured to stir refrigerant from the reducing portion ; a refrigerant strike surface facing the downstream end of the reducing portion with a predetermined interval and configured such that refrigerant from the reducing portion strikes the refrigerant strike surface ; a first branch channel having an upstream end and a downstream end, the upstream end communicating with a portion of the refrigerant stirring chamber separated from the refrigerant strike surface , the downstream end being configured to be communicating with the first refrigerant outflow pipe ; and a second branch channel having an upstream end and a downstream end, the upstream end communicating with a portion of the refrigerant stirring chamber separated from the refrigerant strike surface and from the upstream end of the first branch channel , the downstream end being configured to be communicating with the second refrigerant outflow pipe ; <EOS>