A search system for a radio LAN terminal includes: plural terminals; and a
search computer that searches for connectable terminals out of the plural
terminals in a radio LAN, wherein the search computer includes: a
communication unit provided to be capable of changing transmission power
of radio communication for performing radio communication via the radio
LAN with the plural terminals; and a storage unit that stores a search
list in which identification information including identifiers for
identifying the searched terminals are listed according to an order of
the searched terminals, the plural terminals include terminal
communication units for performing radio communication with the search
computer via the radio LAN, the search computer broadcasts a probe
request for searching for the terminals by minimizing a set value of the
transmission power of the radio communication of the communication unit,
the terminals having received the probe request transmit response signals
including the identification information of the terminals from the
terminal communication units to the search computer, the search computer
checks whether the response signals received are response signals from
new ones of the terminals not stored in the search list, the search
computer adds, when the response signals are response signals from the
new terminals, the identification information included in the response
signals to the search list of the storage unit, and the search computer
performs, when the response signals are not response signals from the new
terminals or the response signals are not received, a series of search
operations starting from the probe request by increasing the set value of
the transmission power of the radio communication of the communication
unit.