The invention discloses a high-protection robot with double rotary joints. The high-protection robot includes a base assembly, a transposition assembly, an upper arm assembly, a lower arm assembly, awrist joint assembly, a distal joint assembly and a line crossing device; the line crossing device is communicated with the upper arm assembly and the lower arm assembly, a second reducer is arrangedinside the wrist joint assembly and is connected with the distal joint assembly, a second gear set is arranged in the second reducer, the middle of the second reducer is hollow and forms a second through groove, and the second through groove runs through the interior of the wrist joint assembly and the interior of the distal joint assembly. The high-protection robot with the rotary joints can workdirectly in a water spraying environment, through the hollow structure, communication and power supply cables of the high-protection robot are all wired inside the high-protection robot, besides, airtightness connection is adopted, it is ensured that space inside the high-protection robot is relatively independent, and therefore the purpose of watertightness and the technical effect of high protection are achieved.