The invention provides a distributed non-
combustion type constant-temperature pressurized 
power generation system. The 
system comprises a water tank (1), a 
fuel storage tank (2), a fuel water proportioning pump (3), a mixer A (4), a fuel atomizer (5), a second 
heat exchanger (26), a first 
heat exchanger (25), 
dehydration tanks (27, 28 and 12), a 
carbon monoxide removal reactor (11), a 
catalytic combustion reactor (6), a fuel water reforming reactor (29), a composite air-cooling 
heat sink (22), a 
hydrogen-air pressure balancer (14), a fuel 
cell cooling 
liquid tank (13), a 
compressed air heat exchanger (23), a fuel 
cell cooling circulation pump (15), a recycled 
hydrogen compressor (21), a 
hydrogen-rich 
storage tank (19), a hydrogen recycle membrane separator (17), a 
hydrogen fuel cell pack (16), an exhaust purifier (7), an expansion compressor (9), a control valve (18), a (normal-pressure fuel water) vapor-liquid separator (20), a mixer B (8), a mixer C (10), a mixer D (24), a 
steam trap (30), a 
system controller (31), a one-way valve (41) and valves (42-54). By applying an energy state theory, a vapor-liquid two-phase coexistence constant-temperature condensation or 
evaporation principle and phase-change heat-transfer highest efficiency principle, 
hydrogen production by reforming and constant-
temperature control on a 
hydrogen fuel battery are achieved.