The invention relates to a gas well output splitting method in the field of compact gas reservoir gas field exploitation engineering, and specifically relates to a gas well output splitting method for a compact gas reservoir at a gas collection station production mode. The method comprises the following steps: inputting parameters prepared at an early stage; calculating flowing bottomhole pressure pwfi by use of casing pressure according to a static gas column pressure formula; assuming that there is gas output q1i; by use of a single-phase vertical flow formula, calculating restrictor outlet pressure p2i; by use of the single-phase vertical flow formula, calculating restrictor inlet pressure p1i; according to the restrictor inlet pressure and the outlet pressure, by use of a nozzle flow formula, calculating restrictor output q2i; calculating the restrictor output q2i by use of the nozzle flow formula; determining an absolute value of a difference between the assumed flow q1i and the calculated output q2i falls into the scope of an allowed error delta; making i=i+1, and calculating output of a next well; and according to total output of a gas collection station and the calculated output of each single well, splitting the total output into the single wells. The method provided by the invention improves the calculation accuracy, facilitates long-term development of a gas field and enlarges the application scope.