A loop type heat pipe comprising: an evaporator that vaporizes working fluids; a first condenser and a second condenser that liquefy the working fluids respectively; a first liquid pipe that includes a first flow channel and connects the evaporator and the first condenser to each other; a second liquid pipe that includes a second flow channel and connects the evaporator and the second condenser to each other; a first vapor pipe that connects the evaporator and the first condenser to each other; and a second vapor pipe that connects the evaporator and the second condenser to each other, characterised in that the evaporator comprises: a third flow channel that is connected to the first liquid pipe and the first vapor pipe; a fourth flow channel that is connected to the second liquid pipe and the second vapor pipe; and a partition wall that partitions the third flow channel and the fourth flow channel from each other, wherein: the first flow channel is partitioned from the second flow channel and the fourth flow channel and communicates with the third flow channel; and the second flow channel is partitioned from the first flow channel and the third flow channel and communicates with the fourth flow channel. an evaporator that vaporizes working fluids; a first condenser and a second condenser that liquefy the working fluids respectively; a first liquid pipe that includes a first flow channel and connects the evaporator and the first condenser to each other; a second liquid pipe that includes a second flow channel and connects the evaporator and the second condenser to each other; a first vapor pipe that connects the evaporator and the first condenser to each other; and a second vapor pipe that connects the evaporator and the second condenser to each other, characterised in that the evaporator comprises: a third flow channel that is connected to the first liquid pipe and the first vapor pipe; a fourth flow channel that is connected to the second liquid pipe and the second vapor pipe; and a partition wall that partitions the third flow channel and the fourth flow channel from each other, wherein: the first flow channel is partitioned from the second flow channel and the fourth flow channel and communicates with the third flow channel; and the second flow channel is partitioned from the first flow channel and the third flow channel and communicates with the fourth flow channel. a third flow channel that is connected to the first liquid pipe and the first vapor pipe; a fourth flow channel that is connected to the second liquid pipe and the second vapor pipe; and a partition wall that partitions the third flow channel and the fourth flow channel from each other, wherein: the first flow channel is partitioned from the second flow channel and the fourth flow channel and communicates with the third flow channel; and the second flow channel is partitioned from the first flow channel and the third flow channel and communicates with the fourth flow channel. the first flow channel is partitioned from the second flow channel and the fourth flow channel and communicates with the third flow channel; and the second flow channel is partitioned from the first flow channel and the third flow channel and communicates with the fourth flow channel.